I have developed an arcpy script which is published as a geoprocessing service in ArcGIS for Server 10.2, which is used in an web application. The GP-Service has an associated MapService to show the results in the map. The service is running some times and everthing is alright, but eventually the error "Failed to find the map." is occurring. After that, the service is not usable anymore, until I restart it in ArcGIS Server Manager. I don't have any clue on how to fix this issue, any ideas?
The MapServer is associated to the GP-Server, there are no other messages in the log / protocoll of the server.