Fix exception when deleting a tvmaze show, with trakt enabled.

[p0psicles]

• PR is based on the DEVELOP branch
• Don't send big changes all at once. Split up big PRs into multiple smaller PRs that are easier to manage and review
• Read the contribution guide

[codecov-io]

Codecov Report

Merging #3754 into develop will decrease coverage by 0.49%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           develop    #3754     +/-   ##
==========================================
- Coverage    28.87%   28.38%   -0.5%     
==========================================
  Files          279      280      +1     
  Lines        35090    37052   +1962     
==========================================
+ Hits         10133    10517    +384     
- Misses       24957    26535   +1578

Impacted Files	Coverage Δ
medusa/trakt_checker.py	0% <ø> (ø)	⬆️
medusa/helpers/utils.py	50% <0%> (-7.9%)	⬇️
medusa/server/core.py	27.16% <0%> (-2.57%)	⬇️
medusa/subtitles.py	53.87% <0%> (-1.59%)	⬇️
medusa/tv/series.py	18.71% <0%> (-1.53%)	⬇️
medusa/tv/episode.py	18.61% <0%> (-0.85%)	⬇️
medusa/__main__.py	0% <0%> (ø)	⬆️
medusa/show_queue.py	0% <0%> (ø)	⬆️
medusa/app.py	100% <0%> (ø)	⬆️
medusa/providers/torrent/__init__.py	100% <0%> (ø)	⬆️
... and 10 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update de84ad1...ac6f669. Read the comment docs.