Error while executing the Post-migration Script in V12

Hi,

For one of the client's we are trying to migrate the system from version 6.5 to version 12. We have successfully executed the Pre-Migration script in v6.5 system. But while executing the

Post-Migration script in V12 system we are facing some issues. Please refer the below screenshots for the same.

Error: " @X3.TRT/UUMGTRTPUR02$adx (289) Error 76 : SQL Server Error [Microsoft][SQL Server Native Client 11.0]Restricted data a type  attribute violation "

       

These same errors we are getting for many codes Like UUMGTRTSAL02, UUMGTRTSAL04 ,UUMGTRTSAL06, UUMGTRTPUR01 , UUMGTRTPUR02 , UUMGTRTPUR04 ,

UUMGTRTTRS02, etc.

Any inputs of this will be highly appreciated.