Caught a bug/how to pass mission which broke... (Mass Effect)

A hundred times already passed the trilogy, but only now caught the bug that it is impossible to talk to Lorik Keenom nor Parasini eventually hangs now in the diary homework - ''Noveriya: Lorik Kiin'', searched old how to get around, but found nothing... Maybe someone knows how to finish a mission for example through a console or something else?