added error catch for taskid == 0
added error catch for taskid == 0

teharrison/MG-RAST,paczian/MG-RAST,teharrison/MG-RAST,MG-RAST/MG-RAST,paczian/MG-RAST,teharrison/MG-RAST,paczian/MG-RAST,MG-RAST/MG-RAST,teharrison/MG-RAST,paczian/MG-RAST,teharrison/MG-RAST,teharrison/MG-RAST,MG-RAST/MG-RAST,paczian/MG-RAST,MG-RAST/MG-RAST,paczian/MG-RAST,MG-RAST/MG-RAST