UFT crash

I used HP Unified Functional Testing 12. Then I try to create API test. The UFT just crashed and I got en error message

 

An unexpected error occurred.

Click ‘OK’ to close this message. You may be able to continue working,
but note that this workflow may cause the error to occur again.
Click ‘Details’ to display technical details on this error which may help
you solve the problem, or can be used when contacting customer support."

 

Please suggest.