Remove x-powered-by: PHP header you should edit php ini, globally /opt/plesk/php/7.4/etc/php.ini (7.4 is the version) and restart apache. nginx also I am still looking for.
This is issue is solved.
Dns Zone records in psa db was missing in dns_zone table, however the records exists.
I copied another zone with the id and name name of my domain, it it showed back all.
I think, we are paying so much for solving this kind of bugs :)
I have no idea how!
Only on this domain, there is no enable/disable button or any dns records.
When I try to create NS record, getting error Error: Incorrect DNS record values were specified: . IN NS domain.com.: ('displayHost' = '.', 'host' = '.') at image 2.
Please advise