[Gelöst] Website cannot connect to WPML

Background of the issue:
I just installed the OTGS installer. I added the key and then nothing happens. I cannot install the WPML plugins. I tried adding this code to wp-config: define("OTGS_DISABLE_AUTO_UPDATES", true); it won't work. I tried without Wordfence and WP Rocket activated, didn't work either.

Symptoms:
I get an error: versteckter Link

Questions:
Why can't I install the WPML plugins after adding the key?
What does the error in the screenshot indicate?
Is there a conflict with Wordfence or WP Rocket?