Dell Avamar 19.4 Exchange 2016 Failed backup 10007 VSS

All, the backup job used to run but it no longer does. From the log, I get 

Exchange Backups Daily 4AM-1631540636211" non-zero exit status 'code 536870919: miscellaneous error'
2021-09-13 09:44:14 avagent Info <14836>: Unable to find manager for (3001-progress-BP Exchange Backups Daily 4AM-1631540636211) while processing stop

Any help would be greatly appreciated.

Complete log entry:

2021-09-13 09:43:56 avagent Info <5964>: Requesting work from idpa-sv.abanco.com
2021-09-13 09:43:56 avagent Info <18948>: Using secure session tickets and progress avtar for workorder processing
2021-09-13 09:43:56 avagent Info <6686>: Process 15120 (C:\Program Files\avs\bin\avexvss) for workorder BP Exchange Backups Daily 4AM-1631540636211 started
2021-09-13 09:43:56 avagent Info <6686>: Process 2240 (C:\Program Files\avs\bin\avtar) for workorder progress-BP Exchange Backups Daily 4AM-1631540636211 started
2021-09-13 09:43:58 avagent Info <10684>: Setting ctl message version to 3 (from 1)
2021-09-13 09:43:58 avagent Info <16136>: Setting ctl max message size to 268435456
2021-09-13 09:43:58 avagent Info <10684>: Setting ctl message version to 3 (from 1)
2021-09-13 09:43:58 avagent Info <16136>: Setting ctl max message size to 268435456
2021-09-13 09:43:58 avagent Info <18957>: Sending workorder to plug-in
2021-09-13 09:44:06 avagent Info <40019>: Checking certificate status.

2021-09-13 09:44:06 avagent Info <5964>: Requesting work from idpa-sv.abanco.com
2021-09-13 09:44:07 avagent Info <5264>: Workorder received: sleep
2021-09-13 09:44:07 avagent Info <5996>: Sleeping 1044 seconds
2021-09-13 09:44:07 avagent Info <40019>: Checking certificate status.

2021-09-13 09:44:07 avagent Info <5964>: Requesting work from idpa-sv.abanco.com
2021-09-13 09:44:07 avagent Info <5264>: Workorder received: sleep
2021-09-13 09:44:07 avagent Info <5996>: Sleeping 1051 seconds
2021-09-13 09:44:09 avagent Info <6688>: Process 2240 (C:\Program Files\avs\bin\avtar) finished (code 0: success)
2021-09-13 09:44:14 avagent Info <6688>: Process 15120 (C:\Program Files\avs\bin\avexvss) finished (code 536870919: miscellaneous error)
2021-09-13 09:44:14 avagent Warning <6690>: CTL workorder "BP Exchange Backups Daily 4AM-1631540636211" non-zero exit status 'code 536870919: miscellaneous error'
2021-09-13 09:44:14 avagent Info <14836>: Unable to find manager for (3001-progress-BP Exchange Backups Daily 4AM-1631540636211) while processing stop
2021-09-13 09:45:40 avagent Info <10684>: Setting ctl message version to 3 (from 1)
2021-09-13 09:45:40 avagent Info <10684>: Setting ctl message version to 3 (from 1)
2021-09-13 09:45:40 avagent Info <16136>: Setting ctl max message size to 268435456
2021-09-13 09:45:40 avagent Info <6984>: Browsing directory "C:\Program Files\avs\var" * with time limit of 30 seconds
2021-09-13 09:45:40 avagent Info <6985>: Directory "C:\Program Files\avs\var" returned 31 files complete?yes
2021-09-13 09:45:40 avagent Info <6984>: Browsing directory "C:\Program Files\avs\var\clientlogs" * with time limit of 30 seconds
2021-09-13 09:45:41 avagent Info <6985>: Directory "C:\Program Files\avs\var\clientlogs" returned 7 files complete?yes
2021-09-13 09:45:41 avagent Info <6984>: Browsing directory "C:\Program Files\avs\var" * with time limit of 30 seconds
2021-09-13 09:45:41 avagent Info <6985>: Directory "C:\Program Files\avs\var" returned 31 files complete?yes
2021-09-13 09:45:41 avagent Info <6984>: Browsing directory "C:\Program Files\avs\var\clientlogs" * with time limit of 30 seconds
2021-09-13 09:45:41 avagent Info <6985>: Directory "C:\Program Files\avs\var\clientlogs" returned 7 files complete?yes
2021-09-13 09:45:43 avagent Info <6984>: Browsing directory "C:\Program Files\avs\var" * with time limit of 30 seconds
2021-09-13 09:45:43 avagent Info <6985>: Directory "C:\Program Files\avs\var" returned 31 files complete?yes
2021-09-13 09:45:43 avagent Info <6984>: Browsing directory "C:\Program Files\avs\var\clientlogs" * with time limit of 30 seconds
2021-09-13 09:45:43 avagent Info <6985>: Directory "C:\Program Files\avs\var\clientlogs" returned 7 files complete?yes