I found the issue!
I updated the php Version and also resolve a missconfig. in my nginx conf.
Now everything works fine and as expected.
Thanks everybody for your help!
PHP Version
PHP 8.1.16 (cli) (built: Feb 14 2023 18:59:41) (NTS gcc x86_64)
Yeah, i can change everything else.
Even in the Contact3 plugin itself.
But when i change sth. in the plugin, the site jumps back to the General page and "Your Mail" resets to default user again. Same after i click save.
i have an issue with the contact3 v2.1.1 plugin. Behavior: Anything i enter on General/Your Email is overwritten to the default username. Example: new@mail.com -> admin
I would like to use it, but i always get this obscure error. So i tried a fresh install on the same server, same error ...
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