{"error":"Unauthorized","status":401,"message":"Invalid OAuth token"}

[BarryCarlyon]

@Mosche

I see that you have write before on this forums that is expired in 60 days.

Implict auth tokens are good for 60 days (generally)
App Access is 60 days (generally)
And regular tokens 4 hours

@Mosche

but why it expired in 15-20 minutes?

I don’t understand your problem, if the token is dead, reauthenticate the user