found an interesting bug, all the townspeople are stuck in front of a bridge that is slightly elevated at the beginning of the bridge on one side creating an impassible spot that they are all piling up on in one big bunch, upvote for the devs!
there's still an issue with quests not loading, instead of freezing it remains on the load screen permanently with the animations and load wheel running constantly with the quests Forbidden403 mentioned before
There haven't been reports of widespread crashing. If you are still experiencing this, please send in a bug report with as much information as you can include, and we will take a look. Thanks!
if you've already completed a mission before it is shown you shouldn't have to complete it again, the money should just be given to you when it comes up and be completed
Have you tried reloading your browser (ctrl-f5)?