Error while Unit Testing [AX 2012 R3]

Hi All,
I was facing below error while running test cases for a customization. 

• An internal error occurred in the remove operation in the SysTestRecordCleanUp#Context object cache.
• A critical error has occurred in function SysTestRecordCleanUp::cleanUpContext.
• An error has occurred. Contact your administrator for further assistance.

 
Solution: However i am not very much sure why this error was coming and what is the main reason for this, but I used below steps and its resolved this issue.

1. Stop to AOS
2. Delete AUC files from below path.
3. Restart AOS.

Try now, it should work fine.

-Harry