Search form in Firefox did not work right

just to narrow down the problem and help us debug the issue is it possible to try the following temporarily:

– deactivating all other plugins to see if this resolves the problem. If this works, re-activate the plugins one by one until you find the problematic plugin(s).
– switching to the default theme to rule out any theme-specific problems

Hi,

it is not possible to disable more than 20 plugins and got to a standard theme back https://oldtimer-veranstaltung.de/kalender/.

In the last version from 5 month ago all works fine in Firefox, Safari and Chrome.

Marcus said, that the problem he had, too:

Hi, I do see some differences on a vanilla install as well. Bear with us a couple of days please and we’ll check it out.

https://www.ads-software.com/support/topic/more-errors-after-update-to-5-7/#post-9134606

Thank you for help

Please don’t open multiple threads for the same issue. We’re already answering you here:
https://www.ads-software.com/support/topic/more-errors-after-update-to-5-7