cPanel Internal Server Error open3: fork failed: Cannot allocate memory at cpsrvd-ssl

If you see the below error on your VPS or WHM:

cPanel Internal Server Error open3: fork failed: Cannot allocate memory at cpsrvd-ssl

To fix the above error try increasing memory for cPanel from WHM >> “Tweak Settings” and see if the problem resolved.
Tweak Settings
If sill facing error you may execute the following command to fix this.

/scripts/upcp –force