Plugin settings save don’t work after v2

Hi. Using the plugin with version 2.0.0 (upgraded from previous version), I have a problem with the settings. It no longer saves the settings that I apply to plugin. For example I tried to deactivate the option for the right click disable and it always stays on. Some other changes that I tried to change for the watermark also didn’t work. Can you have a look please. It worked fine till the update came. I also tried to check the delete database data after deactivation and deactivate and uninstall the plugin but that didn’t fix the issue. I am using php 8.4 in a dedicated machine.