tons of 503 errors!

[PhotoWeb]

Ever since I upgraded my panel to 11.5 my busiest website has been showing a lot of 503 errors, suggestions?

 

[PhotoWeb]

Bumping this, still need help. CPU and memory usage by apache are much higher since upgrade to 11.5.

 

[seebii]

Bumping this, still need help. CPU and memory usage by apache are much higher since upgrade to 11.5.

Are you using PHP with FastCGI? There could be a misconfiguration..

 

[Silvester van der Leer]

Are you using PHP with FastCGI? There could be a misconfiguration..

I'm getting 502 errors (bad gateway) in phpmyadmin, when doing a dump