Internal error: DbaXXXX functions after Update to DP 10.70

After our update from DP to version 10.70, I keep getting the message Internal error: DbaXXXX functions during the backups.
In the event log of the Windows OS there is also a suitable entry regarding a crash of dbsm.exe.

Faulting application name: dbsm.exe, version:, time stamp: 0x5eb1a796
Faulting module name: ucrtbase.DLL, version: 10.0.14393.2990, time stamp: 0x5caeb96f
Exception code: 0xc0000409
Fault offset: 0x000000000006e00e
Faulting process id: 0x2ab0
Faulting application start time: 0x01d660b22724ec98
Faulting application path: E:\HPE_DP_BIN\OmniBack\bin\dbsm.exe
Faulting module path: C:\Windows\SYSTEM32\ucrtbase.DLL
Report Id: 65274ed1-cca5-11ea-80ee-0050568f4073
Faulting package full name:
Faulting package-relative application ID: