Ran into this error again last night, scrambled for the notes but couldn’t find them… Pulled this from cpanel support (those guys ROCK!)
SSH into the server and run;
quotaoff -a
quotacheck -acfmv
/scripts/resetquotas
Main >> Account Information >> List Accounts should now have the “Disk Used” section reporting correctly again
also if
cat /etc/fstab
/dev/sda8 on /home type ext3 (rw)
is showing different than mount,
LABEL=/home /home ext3 defaults,usrquota 1 2
/home may need to be remounted using
mount -o remount,ro newdir