Hey, ive been getting the following issue for the last week or so: Quota error (Device dm-0): qtree_read_dquot: Cant read quota structure for ID 0 Quota error (device dm-0): Find_block_dqentry: Quota for id 0 referenced but not present And after a few hours some services stop working like database. This started before the update to the latest version of ispconfig and after the update it continues. I also updated linux but those were some smaller updates, not a full framework. Im running Ubuntu server 15.10 (4.2.0-34) - ISPConfig 3.0.5.4p9 All help is welcome EDIT: I tryed: /sbin/quotaoff -a; /sbin/quotacheck -avugm; /sbin/quotaon -a; And the first few times it didnt fix it... and half way giving up, i tryed it again and this time it fixed it... so if someone else gets this, give it a few tryes and it might work.