throw error if no groupId in logging
throw error if no groupId in logging

TurkServer/turkserver-meteor,VirtualLab/turkserver-meteor,HarvardEconCS/turkserver-meteor,VirtualLab/turkserver-meteor,HarvardEconCS/turkserver-meteor,TurkServer/turkserver-meteor,VirtualLab/turkserver-meteor,HarvardEconCS/turkserver-meteor,TurkServer/turkserver-meteor