Thanks for replying Vijah ??
So I did back up my website through FTP before upping my php to 7.4 and now the critical errors are gone… but my website keeps crashing every 30-45min (aka sometimes it works and sometimes I get a 500 Internal Servor Error ??).
My .htaccess should be at the root, not under “www”, right? Somehow it was in the wrong place. I’m not sure the content is right, I have a bunch of “AddType” and “AddOutputFilterbyType” in it, I don’t know what I should and should not find in the .htaccess…
I tried to call OVH today thinking it could be a server issue but I couldn’t get them on the phone. I’ll try again monday…