Does anyone know why I am getting this error, when the process clearly exists and is active?

Challenge not yet complete... here's what's wrong: 
There was an unexpected error in your org which is preventing this assessment check from completing: System.DmlException: Process failed. First exception on row 0; first error: NO_APPLICABLE_PROCESS, No applicable approval process was found.

Before '14 release there was a invaluable feature in salesforce to check the covered/uncovered code segments of a particular class or trigger. They were clearly showed with pink and red color so that developers can easily manage the code coverage. But recently forums say it has been moved into developer console. But I can't find that feature even in the console. Please help if anyone know the job.