Hello Bastiaan van Leeuwen, Yes I would power cycle the TL & the host and see if the error still is showing afterwards. Please let us know if you have any other questions.
I have a dell Powervault TL 2000 and it has the following error: Does anybody know what this is , and how to fix (or troubleshoot) it? I'm not familiar with this type of backup unit. Help is appreciated
Inventory lost - source probably empty, Inventory lost, because source possible 
empty