Sabrina, the Teenage Witch (1996)

S3E15 Sabrina and the Pirates

Sabrina's aunts submit their magic for its yearly refresh, but when it returns, it accidentally lands in the possession of three pirate prisoners they had neglected to set free years ago. Meanwhile, Sabrina finds herself without her own magic due to an unfortunate accident, and now she must figure out a way to rescue the pirates and reclaim her powers.