Greetings,
I Need Help Plz

I install piwigo-11.5.0 in my site
I uploaded
188,175 Photos
in 1507 Albums
and the Storage used is 13.5GB
3.1k Pages seen

i got Server load
CPU Usage 100%
Memory RAM (with Cache): 80%
Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.

The server has disappeared and I can't access the server control panel
Then I restarted the server from the hosting control panel

I have stopped the script now so that it does not cause an overload and does not crash the rest of the sites on the server

My dedicated server is :
Linux server
el7.x86_64
Memory RAM (with Cache): 32 GB
Memory RAM (with NO Cache): 32 GB