M365 Plugin Teams backups failling with "Object reference not set to an instance of an object" (4375232)

Login to NetVault using a user having proper privileges to create backup jobs and has access to the client as well as the storage media.

Go to "Create Backup Job" page.

Create a new selection set using the Create icon against the Selections. Expand the NetVault Server-> Plug-in for Microsoft 365-> Expand the Tenant -> Expand Microsoft 365 Apps --> Select Teams --> Enter set name and click on save.

Select the "Default" plugin option set.

Select the "Immediate" schedule set.

Select the Target Storage device.

Enter job name, click on "Save & Submit".

Once the backup job started click on the job and go to view logs.

Check for the error for the channel messages.