Upgrading V12 Patch 18 to Patch 33 TC211118_265652: Process in error - The validation of folder SPOUAT has failed because of a serious error

SOLVED

We are in the process of upgrading V12 Patch 18 data to Patch 33 and we are getting the error on screenshot below.

How can we resolve

Steps taken

- Brand new installation of V12 Patch 33 (New servers)

- Load V12 patch 18 folder 

- On trying to run full folder validation getting the error message.