I installed all updates via yum, except for kernel bind etc
Plesk also all micro updates are installed, which I have just checked again by cli
at the subscription is not installed or active ningx all run over fast_cgi
the error message has exclusively what with ningx and plesk to do backend because otherwise no is ningx installed.
it is not because of too many files in the webuser the domain content in an example domain is just 168 KB. the example domain that I have precisely applied to the test again contains basically only the automatically provided by Plesk files errorpages, index.html, css, etc.
where and in what file is ningx for Plesk backend Configured?