[Resolved] adjustment in the rewrite block of Wordpress in the .htaccess file.

Good Morning,

I was working at the staging website when out of a sudden the production website broke down, but the staging website still works.
We got from our hosting server the following error:

The reason for this is that the plugin "sitepress-multilingual-cms" apparently always performs an adjustment in the rewrite block of WordPress in the .htaccess file.

####

RewriteEngine On
RewriteRule .* - [E=HTTP_AUTHORIZATION:%[HTTP:Authorization]]
RewriteBase /en/
RewriteRule ^index\.php$ - [L]
RewriteCond %[REQUEST_FILENAME] !-f
RewriteCond %[REQUEST_FILENAME] !-d
RewriteRule . /en/index.php [L]

####

How can we solve the problem as soon as possible?

I can not actually get access to the production website and its wordpress dashboard and I can not provide any debug info