Please help I have a CRITICAL error on my page

When I connet to my site www.ok-ev.com I get " critical error"

What is this ?

I just modified some content for 2520px website and got this.

Here you find the linnk

https://preview.webflow.com/preview/okevs-stupendous-site?utm_medium=preview_link&utm_source=designer&utm_content=okevs-stupendous-site&preview=bf13581d15365cce9baa17e1519f280b&workflow=preview


Here is my site Read-Only: LINK
(how to share your site Read-Only link)

the www site was redirecting me to https://de.ok-ev.com/ . This is your own webserver that is not configured properly.

that is weglot language autoswitch that took you to the german version. I have just desactived and the problem is still there

my hosting was fine, it happend out of the blue after making some modifications on a 2550px screen version