About: http://webisa.webdatacommons.org/372466731

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	To isolate the problem furthere, did you deactivate all plugins except BuddyPress (and BP template pack or Genesis Connect) and see if you can log in?
http://www.w3.org/ns/prov#wasQuotedFrom	buddypress.org