An error occurred (code: 1003), An unexpected error occurred

My image-based backup has stopped working, even though it has been functioning correctly for about a year. The first relevant error messages in the log are as follows:

2024-04-26 16:13:51,955 [PL] [1] NOTICE - GenerationConsistencyCheck.ExecuteMandatoryCheck: **Start performing MANDATORY consistency check.
2024-04-26 16:13:51,957 [PL] [1] NOTICE - GenerationConsistencyCheck.ExecuteMandatoryCheckInternal: Current generation number 1 (24fce674-3f15-46fc-b2b4-77c78d2fe04e)!
2024-04-26 16:13:53,758 [PL] [1] WARN  - GenerationConsistencyCheck.CheckMissingFiles: Missing storage files count: 2 detected in the generation number: 1 marker: 24fce674-3f15-46fc-b2b4-77c78d2fe04e
2024-04-26 16:13:53,758 [PL] [1] WARN  - GenerationConsistencyCheck.CheckMissingFiles: Removing (missing) success uploaded files from the database. Count: 2
2024-04-26 16:13:53,771 [PL] [1] ERROR - GenerationConsistencyCheck.ExecuteFullCheck: **MANDATORY consistency check finished with ERROR: Object reference not set to an instance of an object.
System.NullReferenceException
Object reference not set to an instance of an object.
   at aKT.A(akZ[] )
   at aDr.A(aKT , aDQ , ErrorCollector , aDs[] , ICancelable )
   at aDr.aDW.A(afW )
   at aKT.A(Action`1 , Boolean , Action`1 )
   at aDr.A(aKT , aDQ , ErrorCollector , aEz[] , ICancelable )
   at aDr.a(aKT , ErrorCollector , ICancelable )
   at aDr.A(aKT , ErrorCollector , ICancelable )

I not sure but it seems like it started after upgrade from ‘7.9.2.267’ → ‘7.9.4.103’

Has anyone encountered this problem?

[reply=“Soren;d9731”] Please DM me your contact email address. We will need to look at the detailed log to investigate further.