I have a WordPress job portal and I need to accept various job offers and update a lot of posts. When I try to accept or change posts, the site simple goes down and shows the error "502 bad gateway". It never happens before, it started to happen when I migrated to NGINX. Someone can give some tips? **Server Configuration:** - OS: Ubuntu 18.04 - RAM: 16GB - CPU: 6 Coresby deezywonder - How to...