No Free Rides / I'm Your Biggest Fanatic - S2-E10
Continuity mistake: No Free Rides: When SpongeBob's boat is falling towards the police car, SpongeBob rips off the top part of Mrs. Puff's ski mask, leaving the bottom half of it on her. In the next shot, it is replaced with her regular outfit.
Chosen answer: You need to provide a little bit more information to be able to answer a question like this. In what region is it not being shown? I see it being replayed here in Australia fairly frequently. As for a general reason, there does not appear to be any for why it specifically might have been taken off the air in any country or region. Like any show certain episodes can sometimes not be replayed for long periods for unknown reasons.
Lummie ★