fix auth header and error message
fix auth header and error message

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