License Error Email received, Backup failed

Got an Email about a failed backup.
How do I add a license key for V11? The License… Tab does not have any functionality…
It never asked me about one and till now it worked

Detailed Log:
01:00:01 : ERROR: Job execution error: Failed to update license info… Computer name: “xxx”
01:00:02 : ERROR: Job “Backup Job - 1” finished with “1” errors

Thank you for the issue reporting. We’ll check and fix it.