Error while updating user type from Basic user to System Administrator

Hi, While trying to update the user type of a user from Basic User to System Administrator from the Admin Console, I am getting the below error:

The System Has Encountered an Error

HTTP Code: 500 APNX-1-4198-019 An Error Has Occurred Expression evaluation error [evaluation ID = 56b19:29d6a] : An error occurred while executing a save: Expression evaluation error : External Reaction Function with name sys.smartService.internal3.updateuserprofile4, does not exist.

Can you please let me know if there is any known resolution for this? Thanks in advance!

  Discussion posts and replies are publicly visible