Roundcube: Connection to Storage Server Failed

I have around 800 email accounts each sending about 300 daily emails hosted on my dedicated server...When I try to log into my roundcube it is giving me error " Connection to Storage Server Failed"

My CW Pro web panel is accessible and it does not show any shortage of resources

https://prnt.sc/X25xQVSz1Ec1

https://prnt.sc/CmjJ1pNn4Dut

My apace webserver...httpd service also keeps on getting shut down every alternate day

Do you have a screen shot of the top right showing the partitions?

Do your logs give you any clues?
/usr/local/cwpsrv/var/services/roundcube/logs/
especially /usr/local/cwpsrv/var/services/roundcube/logs/errors.log

Code: [Select]

grep storage /usr/local/cwpsrv/var/services/roundcube/logs/errors.log
Usually storage server errors with Roundcube indicate an IMAP connection issue. Is dovecot functioning normally? So also check out

Code: [Select]

/var/log/dovecot-debug.log
/var/log/dovecot-info.log
/var/log/dovecot.log

Do you have a screen shot of the top right showing the partitions?

https://prnt.sc/QQqNuos84Dsk

Is this the one you are asking for ?

Don't care what the Disk Inodes show.

What does the Disk Details (partitions) show?

2,255 processes is also about 10 times higher than it should be.