Error message after solver finished the run
 

Dear friends,

I simulating a transient flow with 100 time step and results frequency of 2 time step, means that I have 50 output files.
When the solver finishes the solution , there is an error message (attached) and the post prospering can not be updated.
All of the results are in "pending" folder but I guess can not be moved to the main folder.
I have started the run some couple of time , every time the same problem.

I would appreciate if you can help me on this problem.

Thanks

Mehdi