BrandiBlitz
I believe this is due to a coding error within altstore itself. 
update: all extra+ options are broken
not sure about github, but reddit has lots of issues with token.pickle that went unresolved.
authentication console as proof
> youtube.com/watch?v=c6ebWvay8dE Thanks Thio!~ hopefully this issue gets resolved soon~ Also, I used your tutorial (that is the exact tutorial) I used to try to get this set up.