refactor: fix credo warnings and format code

- Replace Enum.map/2 |> Enum.join/2 with Enum.map_join/3 for efficiency
- Refactor get_existing_form_values to reduce cyclomatic complexity
- Replace length/1 with Enum.empty?/1 for better performance
- Update gettext translations

priv/gettext/default.pot

@@ -18,6 +18,7 @@ msgid "Actions"
 msgstr ""
 
 #: lib/mv_web/live/member_live/index.html.heex
+#: lib/mv_web/live/membership_fee_type_live/index.ex
 #: lib/mv_web/live/user_live/index.html.heex
 #, elixir-autogen, elixir-format
 msgid "Are you sure?"
@@ -38,6 +39,8 @@ msgstr ""
 #: lib/mv_web/live/contribution_type_live/index.ex
 #: lib/mv_web/live/custom_field_live/index_component.ex
 #: lib/mv_web/live/member_live/index.html.heex
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#: lib/mv_web/live/membership_fee_type_live/index.ex
 #: lib/mv_web/live/user_live/index.html.heex
 #, elixir-autogen, elixir-format
 msgid "Delete"
@@ -142,9 +145,10 @@ msgstr ""
 
 #: lib/mv_web/live/components/payment_filter_component.ex
 #: lib/mv_web/live/contribution_period_live/show.ex
-#: lib/mv_web/live/member_live/form.ex
 #: lib/mv_web/live/member_live/index.html.heex
 #: lib/mv_web/live/member_live/show.ex
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#: lib/mv_web/member_live/index/membership_fee_status.ex
 #: lib/mv_web/translations/member_fields.ex
 #, elixir-autogen, elixir-format
 msgid "Paid"
@@ -171,6 +175,7 @@ msgstr ""
 #: lib/mv_web/live/custom_field_value_live/form.ex
 #: lib/mv_web/live/global_settings_live.ex
 #: lib/mv_web/live/member_live/form.ex
+#: lib/mv_web/live/membership_fee_type_live/form.ex
 #: lib/mv_web/live/user_live/form.ex
 #, elixir-autogen, elixir-format
 msgid "Saving..."
@@ -257,6 +262,8 @@ msgstr ""
 #: lib/mv_web/live/custom_field_live/index_component.ex
 #: lib/mv_web/live/custom_field_value_live/form.ex
 #: lib/mv_web/live/member_live/form.ex
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#: lib/mv_web/live/membership_fee_type_live/form.ex
 #: lib/mv_web/live/user_live/form.ex
 #, elixir-autogen, elixir-format
 msgid "Cancel"
@@ -269,6 +276,7 @@ msgstr ""
 
 #: lib/mv_web/live/custom_field_live/form_component.ex
 #: lib/mv_web/live/custom_field_live/index_component.ex
+#: lib/mv_web/live/membership_fee_type_live/form.ex
 #, elixir-autogen, elixir-format
 msgid "Description"
 msgstr ""
@@ -303,6 +311,7 @@ msgstr ""
 #: lib/mv_web/live/contribution_type_live/index.ex
 #: lib/mv_web/live/member_live/index.ex
 #: lib/mv_web/live/member_live/index.html.heex
+#: lib/mv_web/live/membership_fee_type_live/index.ex
 #, elixir-autogen, elixir-format
 msgid "Members"
 msgstr ""
@@ -310,6 +319,8 @@ msgstr ""
 #: lib/mv_web/live/contribution_type_live/index.ex
 #: lib/mv_web/live/custom_field_live/form_component.ex
 #: lib/mv_web/live/custom_field_live/index_component.ex
+#: lib/mv_web/live/membership_fee_type_live/form.ex
+#: lib/mv_web/live/membership_fee_type_live/index.ex
 #, elixir-autogen, elixir-format
 msgid "Name"
 msgstr ""
@@ -777,6 +788,7 @@ msgid "This field cannot be empty"
 msgstr ""
 
 #: lib/mv_web/components/core_components.ex
+#: lib/mv_web/live/member_live/index.html.heex
 #, elixir-autogen, elixir-format
 msgid "All"
 msgstr ""
@@ -808,7 +820,6 @@ msgid "Back"
 msgstr ""
 
 #: lib/mv_web/live/member_live/form.ex
-#: lib/mv_web/live/member_live/show.ex
 #, elixir-autogen, elixir-format
 msgid "Coming soon"
 msgstr ""
@@ -819,40 +830,26 @@ msgstr ""
 msgid "Contact Data"
 msgstr ""
 
-#: lib/mv_web/live/member_live/form.ex
-#: lib/mv_web/live/member_live/show.ex
-#, elixir-autogen, elixir-format
-msgid "Contribution"
-msgstr ""
-
 #: lib/mv_web/live/member_live/form.ex
 #, elixir-autogen, elixir-format
 msgid "Nr."
 msgstr ""
 
-#: lib/mv_web/live/member_live/form.ex
 #: lib/mv_web/live/member_live/show.ex
 #, elixir-autogen, elixir-format
 msgid "Payment Cycle"
 msgstr ""
 
-#: lib/mv_web/live/member_live/form.ex
 #: lib/mv_web/live/member_live/show.ex
 #, elixir-autogen, elixir-format
 msgid "Payment Data"
 msgstr ""
 
 #: lib/mv_web/live/member_live/form.ex
-#: lib/mv_web/live/member_live/show.ex
 #, elixir-autogen, elixir-format
 msgid "Payments"
 msgstr ""
 
-#: lib/mv_web/live/member_live/show.ex
-#, elixir-autogen, elixir-format
-msgid "Pending"
-msgstr ""
-
 #: lib/mv_web/live/member_live/form.ex
 #: lib/mv_web/live/member_live/show.ex
 #, elixir-autogen, elixir-format
@@ -867,27 +864,11 @@ msgid "Phone"
 msgstr ""
 
 #: lib/mv_web/live/member_live/form.ex
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
 #, elixir-autogen, elixir-format
 msgid "Save"
 msgstr ""
 
-#: lib/mv_web/live/member_live/form.ex
-#: lib/mv_web/live/member_live/show.ex
-#, elixir-autogen, elixir-format
-msgid "This data is for demonstration purposes only (mockup)."
-msgstr ""
-
-#: lib/mv_web/live/member_live/form.ex
-#: lib/mv_web/live/member_live/show.ex
-#, elixir-autogen, elixir-format
-msgid "monthly"
-msgstr ""
-
-#: lib/mv_web/live/member_live/form.ex
-#, elixir-autogen, elixir-format
-msgid "yearly"
-msgstr ""
-
 #: lib/mv_web/live/member_live/form.ex
 #, elixir-autogen, elixir-format
 msgid "Create Member"
@@ -907,6 +888,9 @@ msgstr ""
 
 #: lib/mv_web/live/contribution_period_live/show.ex
 #: lib/mv_web/live/contribution_type_live/index.ex
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#: lib/mv_web/live/membership_fee_type_live/form.ex
+#: lib/mv_web/live/membership_fee_type_live/index.ex
 #, elixir-autogen, elixir-format
 msgid "Amount"
 msgstr ""
@@ -917,6 +901,7 @@ msgid "Back to Settings"
 msgstr ""
 
 #: lib/mv_web/live/contribution_type_live/index.ex
+#: lib/mv_web/live/membership_fee_type_live/index.ex
 #, elixir-autogen, elixir-format
 msgid "Can be changed at any time. Amount changes affect future periods only."
 msgstr ""
@@ -936,7 +921,6 @@ msgstr ""
 msgid "Contribution Start"
 msgstr ""
 
-#: lib/mv_web/components/layouts/navbar.ex
 #: lib/mv_web/live/contribution_type_live/index.ex
 #, elixir-autogen, elixir-format
 msgid "Contribution Types"
@@ -968,6 +952,7 @@ msgid "Current"
 msgstr ""
 
 #: lib/mv_web/live/contribution_type_live/index.ex
+#: lib/mv_web/live/membership_fee_type_live/index.ex
 #, elixir-autogen, elixir-format
 msgid "Deletion"
 msgstr ""
@@ -983,6 +968,7 @@ msgid "Family"
 msgstr ""
 
 #: lib/mv_web/live/contribution_type_live/index.ex
+#: lib/mv_web/live/membership_fee_type_live/index.ex
 #, elixir-autogen, elixir-format
 msgid "Fixed after creation. Members can only switch between types with the same interval."
 msgstr ""
@@ -992,9 +978,11 @@ msgstr ""
 msgid "Global Settings"
 msgstr ""
 
+#: lib/mv_web/helpers/membership_fee_helpers.ex
 #: lib/mv_web/live/contribution_period_live/show.ex
 #: lib/mv_web/live/contribution_type_live/index.ex
 #: lib/mv_web/live/membership_fee_settings_live.ex
+#: lib/mv_web/live/membership_fee_type_live/form.ex
 #, elixir-autogen, elixir-format
 msgid "Half-yearly"
 msgstr ""
@@ -1012,6 +1000,9 @@ msgstr ""
 
 #: lib/mv_web/live/contribution_period_live/show.ex
 #: lib/mv_web/live/contribution_type_live/index.ex
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#: lib/mv_web/live/membership_fee_type_live/form.ex
+#: lib/mv_web/live/membership_fee_type_live/index.ex
 #, elixir-autogen, elixir-format
 msgid "Interval"
 msgstr ""
@@ -1081,9 +1072,11 @@ msgstr ""
 msgid "Members can only switch between contribution types with the same payment interval (e.g., yearly to yearly). This prevents complex period overlaps."
 msgstr ""
 
+#: lib/mv_web/helpers/membership_fee_helpers.ex
 #: lib/mv_web/live/contribution_period_live/show.ex
 #: lib/mv_web/live/contribution_type_live/index.ex
 #: lib/mv_web/live/membership_fee_settings_live.ex
+#: lib/mv_web/live/membership_fee_type_live/form.ex
 #, elixir-autogen, elixir-format
 msgid "Monthly"
 msgstr ""
@@ -1094,6 +1087,7 @@ msgid "Monthly fee for students and trainees"
 msgstr ""
 
 #: lib/mv_web/live/contribution_type_live/index.ex
+#: lib/mv_web/live/membership_fee_type_live/index.ex
 #, elixir-autogen, elixir-format
 msgid "Name & Amount"
 msgstr ""
@@ -1109,6 +1103,7 @@ msgid "No fee for honorary members"
 msgstr ""
 
 #: lib/mv_web/live/contribution_type_live/index.ex
+#: lib/mv_web/live/membership_fee_type_live/index.ex
 #, elixir-autogen, elixir-format
 msgid "Only possible if no members are assigned to this type."
 msgstr ""
@@ -1129,9 +1124,11 @@ msgstr ""
 msgid "Preview Mockup"
 msgstr ""
 
+#: lib/mv_web/helpers/membership_fee_helpers.ex
 #: lib/mv_web/live/contribution_period_live/show.ex
 #: lib/mv_web/live/contribution_type_live/index.ex
 #: lib/mv_web/live/membership_fee_settings_live.ex
+#: lib/mv_web/live/membership_fee_type_live/form.ex
 #, elixir-autogen, elixir-format
 msgid "Quarterly"
 msgstr ""
@@ -1169,6 +1166,7 @@ msgid "Standard membership fee for regular members"
 msgstr ""
 
 #: lib/mv_web/live/contribution_period_live/show.ex
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
 #, elixir-autogen, elixir-format
 msgid "Status"
 msgstr ""
@@ -1189,6 +1187,9 @@ msgid "Suspend"
 msgstr ""
 
 #: lib/mv_web/live/contribution_period_live/show.ex
+#: lib/mv_web/live/member_live/show.ex
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#: lib/mv_web/member_live/index/membership_fee_status.ex
 #, elixir-autogen, elixir-format
 msgid "Suspended"
 msgstr ""
@@ -1210,6 +1211,9 @@ msgid "Total Contributions"
 msgstr ""
 
 #: lib/mv_web/live/contribution_period_live/show.ex
+#: lib/mv_web/live/member_live/show.ex
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#: lib/mv_web/member_live/index/membership_fee_status.ex
 #, elixir-autogen, elixir-format
 msgid "Unpaid"
 msgstr ""
@@ -1219,9 +1223,11 @@ msgstr ""
 msgid "Why are not all contribution types shown?"
 msgstr ""
 
+#: lib/mv_web/helpers/membership_fee_helpers.ex
 #: lib/mv_web/live/contribution_period_live/show.ex
 #: lib/mv_web/live/contribution_type_live/index.ex
 #: lib/mv_web/live/membership_fee_settings_live.ex
+#: lib/mv_web/live/membership_fee_type_live/form.ex
 #, elixir-autogen, elixir-format
 msgid "Yearly"
 msgstr ""
@@ -1242,6 +1248,7 @@ msgid "Last name"
 msgstr ""
 
 #: lib/mv_web/components/core_components.ex
+#: lib/mv_web/live/member_live/form.ex
 #, elixir-autogen, elixir-format
 msgid "None"
 msgstr ""
@@ -1422,3 +1429,319 @@ msgstr ""
 #, elixir-autogen, elixir-format
 msgid "Yearly Interval - Joining Cycle Included"
 msgstr ""
+
+#: lib/mv_web/live/membership_fee_type_live/index.ex
+#, elixir-autogen, elixir-format
+msgid "About Membership Fee Types"
+msgstr ""
+
+#: lib/mv_web/live/membership_fee_type_live/form.ex
+#, elixir-autogen, elixir-format
+msgid "Already paid cycles will remain with the old amount."
+msgstr ""
+
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#: lib/mv_web/live/membership_fee_type_live/index.ex
+#, elixir-autogen, elixir-format
+msgid "An error occurred"
+msgstr ""
+
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#, elixir-autogen, elixir-format
+msgid "Are you sure you want to delete this cycle?"
+msgstr ""
+
+#: lib/mv_web/live/membership_fee_type_live/index.ex
+#, elixir-autogen, elixir-format
+msgid "Cannot delete - %{count} member(s) assigned"
+msgstr ""
+
+#: lib/mv_web/live/membership_fee_type_live/form.ex
+#, elixir-autogen, elixir-format
+msgid "Change Amount?"
+msgstr ""
+
+#: lib/mv_web/live/membership_fee_type_live/form.ex
+#, elixir-autogen, elixir-format
+msgid "Changing the amount will affect %{count} member(s)."
+msgstr ""
+
+#: lib/mv_web/live/membership_fee_type_live/form.ex
+#, elixir-autogen, elixir-format
+msgid "Confirm Change"
+msgstr ""
+
+#: lib/mv_web/live/member_live/index.html.heex
+#: lib/mv_web/live/member_live/show.ex
+#, elixir-autogen, elixir-format
+msgid "Current Cycle"
+msgstr ""
+
+#: lib/mv_web/live/membership_fee_type_live/form.ex
+#, elixir-autogen, elixir-format
+msgid "Current amount"
+msgstr ""
+
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#, elixir-autogen, elixir-format
+msgid "Cycle"
+msgstr ""
+
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#, elixir-autogen, elixir-format
+msgid "Cycle amount updated"
+msgstr ""
+
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#, elixir-autogen, elixir-format
+msgid "Cycle deleted"
+msgstr ""
+
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#, elixir-autogen, elixir-format
+msgid "Cycle status updated"
+msgstr ""
+
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#, elixir-autogen, elixir-format
+msgid "Cycles regenerated successfully"
+msgstr ""
+
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#, elixir-autogen, elixir-format
+msgid "Delete Cycle"
+msgstr ""
+
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#, elixir-autogen, elixir-format
+msgid "Edit Cycle Amount"
+msgstr ""
+
+#: lib/mv_web/live/membership_fee_type_live/form.ex
+#, elixir-autogen, elixir-format
+msgid "Edit Membership Fee Type"
+msgstr ""
+
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#, elixir-autogen, elixir-format
+msgid "Edit amount"
+msgstr ""
+
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#, elixir-autogen, elixir-format
+msgid "Failed to update cycle status: %{errors}"
+msgstr ""
+
+#: lib/mv_web/live/membership_fee_type_live/form.ex
+#, elixir-autogen, elixir-format
+msgid "Future unpaid cycles will be regenerated with the new amount."
+msgstr ""
+
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#, elixir-autogen, elixir-format
+msgid "Generate cycles from the last existing cycle to today"
+msgstr ""
+
+#: lib/mv_web/live/membership_fee_type_live/form.ex
+#, elixir-autogen, elixir-format
+msgid "Interval cannot be changed after creation."
+msgstr ""
+
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#, elixir-autogen, elixir-format
+msgid "Invalid amount format"
+msgstr ""
+
+#: lib/mv_web/live/member_live/index.html.heex
+#: lib/mv_web/live/member_live/show.ex
+#, elixir-autogen, elixir-format
+msgid "Last Cycle"
+msgstr ""
+
+#: lib/mv_web/live/membership_fee_type_live/index.ex
+#, elixir-autogen, elixir-format
+msgid "Manage membership fee types for membership fees."
+msgstr ""
+
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#, elixir-autogen, elixir-format
+msgid "Mark as paid"
+msgstr ""
+
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#, elixir-autogen, elixir-format
+msgid "Mark as suspended"
+msgstr ""
+
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#, elixir-autogen, elixir-format
+msgid "Mark as unpaid"
+msgstr ""
+
+#: lib/mv_web/live/member_live/form.ex
+#: lib/mv_web/live/member_live/index.html.heex
+#: lib/mv_web/live/member_live/show.ex
+#, elixir-autogen, elixir-format
+msgid "Membership Fee"
+msgstr ""
+
+#: lib/mv_web/live/member_live/index.html.heex
+#, elixir-autogen, elixir-format
+msgid "Membership Fee Status"
+msgstr ""
+
+#: lib/mv_web/live/member_live/form.ex
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#, elixir-autogen, elixir-format
+msgid "Membership Fee Type"
+msgstr ""
+
+#: lib/mv_web/components/layouts/navbar.ex
+#: lib/mv_web/live/membership_fee_type_live/index.ex
+#, elixir-autogen, elixir-format
+msgid "Membership Fee Types"
+msgstr ""
+
+#: lib/mv_web/live/member_live/show.ex
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#, elixir-autogen, elixir-format
+msgid "Membership Fees"
+msgstr ""
+
+#: lib/mv_web/live/membership_fee_type_live/index.ex
+#, elixir-autogen, elixir-format
+msgid "Membership fee type deleted"
+msgstr ""
+
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#, elixir-autogen, elixir-format
+msgid "Membership fee type removed"
+msgstr ""
+
+#: lib/mv_web/live/membership_fee_type_live/form.ex
+#, elixir-autogen, elixir-format
+msgid "Membership fee type saved successfully"
+msgstr ""
+
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#, elixir-autogen, elixir-format
+msgid "Membership fee type updated. Cycles regenerated."
+msgstr ""
+
+#: lib/mv_web/live/membership_fee_type_live/index.ex
+#, elixir-autogen, elixir-format
+msgid "Membership fee types define different membership fee structures. Each type has a fixed interval (monthly, quarterly, half-yearly, yearly) that cannot be changed after creation."
+msgstr ""
+
+#: lib/mv_web/live/membership_fee_type_live/form.ex
+#: lib/mv_web/live/membership_fee_type_live/index.ex
+#, elixir-autogen, elixir-format
+msgid "New Membership Fee Type"
+msgstr ""
+
+#: lib/mv_web/live/membership_fee_type_live/form.ex
+#, elixir-autogen, elixir-format
+msgid "New amount"
+msgstr ""
+
+#: lib/mv_web/live/member_live/index.html.heex
+#, elixir-autogen, elixir-format
+msgid "No cycle"
+msgstr ""
+
+#: lib/mv_web/live/member_live/show.ex
+#, elixir-autogen, elixir-format
+msgid "No cycles"
+msgstr ""
+
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#, elixir-autogen, elixir-format
+msgid "No membership fee cycles found. Cycles will be generated automatically when a membership fee type is assigned."
+msgstr ""
+
+#: lib/mv_web/live/member_live/show.ex
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#, elixir-autogen, elixir-format
+msgid "No membership fee type assigned"
+msgstr ""
+
+#: lib/mv_web/live/member_live/show.ex
+#, elixir-autogen, elixir-format
+msgid "No status"
+msgstr ""
+
+#: lib/mv_web/live/membership_fee_type_live/form.ex
+#, elixir-autogen, elixir-format
+msgid "Please confirm the amount change first"
+msgstr ""
+
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#, elixir-autogen, elixir-format
+msgid "Regenerate Cycles"
+msgstr ""
+
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#, elixir-autogen, elixir-format
+msgid "Regenerating..."
+msgstr ""
+
+#: lib/mv_web/live/membership_fee_type_live/form.ex
+#, elixir-autogen, elixir-format
+msgid "Save Membership Fee Type"
+msgstr ""
+
+#: lib/mv_web/live/member_live/form.ex
+#, elixir-autogen, elixir-format
+msgid "Select a membership fee type for this member. Members can only switch between types with the same interval."
+msgstr ""
+
+#: lib/mv_web/live/membership_fee_type_live/form.ex
+#, elixir-autogen, elixir-format
+msgid "Select interval"
+msgstr ""
+
+#: lib/mv_web/live/member_live/index.html.heex
+#, elixir-autogen, elixir-format
+msgid "Show current cycle"
+msgstr ""
+
+#: lib/mv_web/live/member_live/index.html.heex
+#, elixir-autogen, elixir-format
+msgid "Show last completed cycle"
+msgstr ""
+
+#: lib/mv_web/live/member_live/index.html.heex
+#, elixir-autogen, elixir-format
+msgid "Switch to current cycle"
+msgstr ""
+
+#: lib/mv_web/live/member_live/index.html.heex
+#, elixir-autogen, elixir-format
+msgid "Switch to last completed cycle"
+msgstr ""
+
+#: lib/mv_web/live/member_live/show.ex
+#, elixir-autogen, elixir-format
+msgid "Type"
+msgstr ""
+
+#: lib/mv_web/live/member_live/index.html.heex
+#, elixir-autogen, elixir-format
+msgid "Unpaid in current cycle"
+msgstr ""
+
+#: lib/mv_web/live/member_live/index.html.heex
+#, elixir-autogen, elixir-format
+msgid "Unpaid in last cycle"
+msgstr ""
+
+#: lib/mv_web/live/membership_fee_type_live/form.ex
+#, elixir-autogen, elixir-format
+msgid "Use this form to manage membership fee types in your database."
+msgstr ""
+
+#: lib/mv_web/live/member_live/form.ex
+#: lib/mv_web/live/member_live/show/membership_fees_component.ex
+#, elixir-autogen, elixir-format
+msgid "Warning: Changing from %{old_interval} to %{new_interval} is not allowed. Please select a membership fee type with the same interval."
+msgstr ""