Knighttime - S3-E2
Other mistake: When Abby uses her phone to show Eric the pictures that Sven posted on Instagram, her phone states it is 11:26pm when you can see it is daylight after they walk back into Eric's room straight after. (00:05:00)
Other mistake: There is a countdown on the movie screen. It is then reflected in Dusty's glasses. But the numbers are not reversed in the glasses. (00:41:00)