Heroku : Playlist fails to play, but finds the tracks

[vmendis]

I used the Heroku method and created the Heroku App about 10 days ago.
Using 3rd Generation Amazon Echo Dot.
Free Google Music account with my own MP3s. I do understand Geemusic will only play playlists. So I created a playlist call good.

A valid Android_ID is configured with Heroku App.

A) When I ask Alexa to play my playlist 'good' on the echo dot, it actually finds the 16 tracks. This can be seen from the Heroku Log as there are 16 "trackId"s

Then Alexa on the Echo says "There was a problem with the skills response"

This is the Error I see in the Log:
"2020-02-05T16:14:48.460191+00:00 app[web.1]: KeyError: 'fc28a414-b447-30bb-b4fc-2eec79e2386d'"

B) Alexa app on the Andorid phone gives this response when I say "play the playlist good."

"Skill respose was marked as failure"
"The skill responded with 500 HTTP status code"

My Innovation name is "london music", Alexa struggles with my accent when I say "Gee music" :-)

C) Log from Heroku is attached.

Any ideas on how to fix this ?

geemusic.txt