Fix ReadOnlyError

✅ Solution

The ActiveRecord::ReadOnlyError in Devise usually occurs when attempting to modify user attributes during sign-in or other database operations on a read-only database connection or replica. To fix this, ensure Devise operations (especially writes) are performed on the primary, writable database. Configure your application to route Devise's database writes to the appropriate connection using `ActiveRecord::Base.connected_to(role: :writing) { ... }` blocks or similar connection management techniques to target the writable database.