I recently updated wordops, I don't know if the error comes form update but log give me this:
{main}
thrown in /var/www/sitedomain.com/htdocs/wp-con" while reading response header from upstream, client: 165.225.17.94, server: sitedomain.com, request: "GET / HTTP/1.1", upstream: "fastcgi://unix:/var/run/php/php81-fpm.sock:", host: "olddomain.com"
The site was migrated from one domain to another a few years ago, and suddenly it seems to request something from olddomain.com.
Any idea where the problem is?
