I belive it have enough ram
I just told my fd make a new VPS server and move to it with default settings.
Now he have following error message in the log.
2016/07/16 21:43:13 [error] 909#909: *114560 upstream timed out (110: Connection timed out) while reading upstream, client: 162.158.241.90, server: pcucgame.com, request: "POST /wp-admin/admin.php?page=wp-autolink/wp-autolink-updatedpost.php HTTP/1.1", upstream: "fastcgi://127.0.0.1:9070", host: "pcucgame.com", referrer: "https://pcucgame.com/wp-admin/admin.php?page=wp-autolink%2Fwp-autolink-updatedpost.php&taskId=5&url_status=0"
Is it a php7 error? It show upstream error