model check window error

Hi

  While running model check many time in one session, initially it works good but after some time in different cad parts in the same session it shows page display error and in information bar which is located in bottom of creo it displays that model check process completed. To display the model check window i have to close the session then again restart my creo then it works fine. but i cannot do it every time please provide valid solution for this..

please find attachment of the error

thanks in advance