SAP Message 8A820 - Check the program log, change the data, and start again

Notes
VAT Reporting/Autonomous workers:
The historical database or dataset has not been created. It will only
be created, if the Log has been corrected.
Other Reports:
The dataset(s) has/have been created. It is in your way, if you want
to correct the data in the Log or not. Please start the report again
after your corrections.