Hello,
Overlapping of validity for the standard address (i.e ADDR_KIND = XXDEFAULT) is not allowed.
Now, the only possible solution is to delete the overlapping address usage to eradicate the problem.
Please check the database table BUT021_FS so you can either delete the data or write a report to
delete the record for that particular BP. This should ensure that the error message , R11 245 doesn't appear anymore. You can try this in your non-production system and retest if the issue occurs.
Thanks & regards,
Sonal