Spongebob's Last Stand - S7-E22
Character mistake: Near the end of the episode, the main characters are being introduced by SpongeBob; one of those characters is Sandy Cheeks, the name she has had for the entire show. However, SpongeBob addresses her as "Sandy Squirrel."
Spongebob's Last Stand - S7-E22
Continuity mistake: As soon as a man stamps on a tambourine, it disappears 2 shots later.
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 ★