I run fixquotas and get this errors for every account:
Resetting quota for username to 50 M
edquota: Can't open quotafile //aquota.user: Permission denied
edquota: Can't open quotafile /home/aquota.user: Permission denied
edquota: Can't open quotafile /usr/aquota.user: Permission denied
edquota: Can't open quotafile /var/aquota.user: Permission denied
No filesystems with quota detected.
.....
and if I go on WHM and change quota limit the WHM not update the new value, really I not can change quota limit for every username
Resetting quota for username to 50 M
edquota: Can't open quotafile //aquota.user: Permission denied
edquota: Can't open quotafile /home/aquota.user: Permission denied
edquota: Can't open quotafile /usr/aquota.user: Permission denied
edquota: Can't open quotafile /var/aquota.user: Permission denied
No filesystems with quota detected.
.....
and if I go on WHM and change quota limit the WHM not update the new value, really I not can change quota limit for every username