Error setting permissions function not implemented

[DJ Butelo]

Hi! tried to update my computer, and i get this message:

E: Encountered a section with no Package: header
E: Problem with MergeList /var/lib/apt/lists/repository.spotify.com_dists_stable_non-free_i18n_Translation-en%5fUS
E: The package lists or status file could not be parsed or opened.
E: _cache->open() failed, please report.

Synaptic closes after a few seconds. have any advice on how i can fix this?