folder validation error

Hello,

I have an 'APC1' folder in a test environment, and I'm trying to do the 'easy' upgrade from version 6.5 to version 12. I have imported 6.5 the folder in V12 and perform the folder validation. But, the validation couldn't be completed as it gives a below error:

04/17/2019 12:57: 14: No execution of migration phase 2 following error 1  

Error in the migration processes, validation cannot be continued.

Generation End 04/17/19 12:57:14

The validation of folder APC1 has failed because of a serious error

Refer the attached screenshot for your reference.


Any help on this would be much appreciated.