[Gelöst] String translation makes website crash when saving posts of any type

Background of the issue:
I am trying to save a post or page on my website, and it keeps loading for a minute or two, often crashing the site. I have contacted my host, and we identified that the calls from the string translation are causing the issue. Disabling the plugin resolves the problem. Here is a link to a page where the issue can be seen: versteckter Link

Symptoms:
The site crashes with a 504 gateway timeout nginx error after attempting to save a post or page, taking 2 minutes to load.

Questions:
Can you please look into the issue with string translation causing the site to crash?