Virtualmin Backups hangs


OS: Debian 7
Virtualmin: GPL
Problem: Backups do not complete

I have 2 scheduled backups set up.
1 Full backup, once a week to a local folder (mounted smb on another VM actually)
1 Incremental, every night to the same local folder.

Since some time (Last correct backup was around a month ago) both backups won’t complete anymore.
The backups do create the date-named folders but the actual backups are not created.

After some reading i tried a manual CL backup to the same folder. Output below…

virtualmin backup-domain --dest /media/Storage/Backups/Server/Full/ --domain --all-features Starting backup.. *** glibc detected *** /usr/share/webmin/virtual-server/ double free or corruption (!prev): 0x0000000005d352c0 ***

I have no idea how to fix this.

Anyone who can help me get my backups running again?

After reading this i tried to completely remove MySQL and reinstall it.
Problem was solved after that.