fix MongoDB error lookup
fix MongoDB error lookup

naushadh/persistent,rdnetto/persistent,jasonzoladz/persistent,meteficha/persistent,nakaji-dayo/persistent,gbwey/persistentold,andrewthad/persistent,jcristovao/persistent,mitchellwrosen/persistent,meteficha/persistent,pseudonom/persistent,yesodweb/persistent,jcristovao/persistent,gbwey/persistent,jasonzoladz/persistent,gbwey/persistent,paul-rouse/persistent,nakaji-dayo/persistent,mkscrg/persistent,jcristovao/persistent,jasonzoladz/persistent,junjihashimoto/persistent,superduper/persistent,mkscrg/persistent,meteficha/persistent,creichert/persistent,gbwey/persistent,rdnetto/persistent,andrewthad/persistent,nakaji-dayo/persistent,andrewthad/persistent,superduper/persistent,greydot/persistent,mitchellwrosen/persistent,psibi/persistent,plow-technologies/persistent,pseudonom/persistent,gbwey/persistentold,greydot/persistent,greydot/persistent,superduper/persistent,bitemyapp/persistent,erikd/persistent,mitchellwrosen/persistent,junjihashimoto/persistent,mkscrg/persistent