Updated to v3.4.6 now. Everything working fine again, thank you very much!
I’m on a host which is IMO internationally unknown 😉
Well the strange thing on my site is, that the plugin itself causes the error and not a .htaccess. I have to disable the plugin to get the page running with still the same .htaccess running.
I have the same issue, I renamed the plugin folder and my site works fine again now. Before, I guess it even crashed my Apache (loop?), because my server backend returned a 500, too. Logs only said that request got early terminated (nothing more).
