This usually happens when the plugin hasn’t been updated regularly and you’ve skipped multiple versions. In such cases, the database structure may be outdated and incompatible, preventing data from being saved properly.
To fix this:
Go to the plugin settings and export your settings to avoid losing them.
Enable the “Delete Data” option in the settings.
Uninstall the plugin — with the option enabled, this will completely remove the plugin’s data, including the outdated database structure.
Reinstall the plugin — this will create the correct database structure from scratch.
