Plugin not working maybe because of rights?

Hi,
your plugin is and was never working for me and I wondered why. I am using a custom (own) theme and there is nothing special in the wp-config file.
I tried force updating without success.

The thing is that I have to fill in ftp login data every time I update a plugin. So it seems kinda obvious that your plugin isn’t working – how should it know the ftp login data? But at this point I have no clue how to deactivate or bypass it.

https://www.ads-software.com/plugins/stops-core-theme-and-plugin-updates/