Hi, I got the Error:

Error while running event deep-storage-unit::on_configuration_changed
deep-storage-unit/shared.lua:127: table index is nil
stack traceback:
deep-storage-unit/shared.lua:127: in function 'memory_unit_corruption'
deep-storage-unit/shared.lua:132: in function 'validity_check'
deep-storage-unit/control.lua:23: in function <deep-storage-unit/control.lua:19>

After updating the Mod to 1.3.1 from I think 1.2.14.
The Fluid Memory storage is up to date and the Logistic Memory Storage is deactivated.

Update, after a little testing, I noticed, that the Storage units I used were the logistic ones, after downgrading the version of Memory Storage and replacing the logistic Storage Units with non logistic ones the bug didn't show up again.

Thanks for the report.

Just made an update to address this issue. The mod will now automatically delete any invalid units instead of crashing.
Will also send a chat message saying the deleted items and their amounts.