Run the Pre-Installation Wizard and Setup Wizard if you have not already done so.
BulletProof Security Pro Installation, Activation & Setup Wizard Video Tutorial
https://forum.ait-pro.com/video-tutorials/#setup-wizard
If running the Wizard does not fix the problem:
Did you setup a Scheduled Backup Job or were you trying to run a Manual Backup Job?
What name did you give the Backup Job in this text box: Description|Backup Job Name