What to do if my Oauth key was stolen?

Connecting to Facebook is not working. Produces the following error on Facebook:

URL Blocked
This redirect failed because the redirect URI is not whitelisted in the app’s Client OAuth Settings. Make sure Client and Web OAuth Login are on and add all your app domains as Valid OAuth Redirect URIs.

No what you aren't understanding is

One it's a legitimate process there are REAL ee customers who use the keys that's what the keys are meant for

NOT people who looking for stolen keys

By you supporting crime you feed crime only YOU can stop criminals by not supporting them with shaddy websites

G2a is a known for supporting hackers and criminals it's in their bbb rating

If you do it on psn you would still have the issue if you find another deal

When a key is too good to be true

It's probably is

I should clarify, this is a web development / xbox integration question. I'm following the Live Connect API documentation located here: https://msdn.microsoft.com/en-us/library/hh826532.aspx

this happens with stolen or fraudulent keys, happens on all platforms too, if a dodgy key was used to claim a game then they have the right to remove said game from the account, your only recourse is to contact the seller of the key.

Do you mean "track" as in it has gone missing/been stolen and you're trying to locate it?

If your console was stolen, definitely inform the police and give them the console's serial number.

Here's the Xbox Support link for what to do when a console is stolen: https://support.xbox.com/en-US/my-account/security/stolen-console