The backup process don't want start, because the free server space is not enough for the calculated size of files to backup. But the calculation ignores the configured files to skipp. So it is not possible to start the backup.
Ubuntu 16.04.3 LTS
Plesk Onyx
Version 17.5.3 Update #43
Ubuntu 16.04.3 LTS
Plesk Onyx
Version 17.5.3 Update #43