Plugin conflict responsible for “fatal error” notice

I went to disable PayPal donate button plugin and it wouldn’t let me. Informed by host that “full-site-editor” plugin (this one) showed up in log and may have had a conflict. Deleted the other one manual and went back to an older version of this plugin as well.

This is just an FYI. I could edit pages with recent update (good) but still super buggy. Going to stay on a much older version until this thing stabilizes.

It’s also possible the issue was with the other plugin. There were no visible issues on the site