User autentication not working [Help]

I have been a loong time using this code, and everything worked fine, but now suddenly its not working i haven't changed anything and now it says there is an invalid parameter??

Whats happening maybe oculus has changed it?

What should i do i need this verification to still working

"{"error":
   {"message":
       "Invalid parameter",
       "type":
             "OAuthException",
             "code":100,
             "error_subcode": 1891224,
             "fbtrace_id":"AMQlra4U4veObJMwicgyXMS"
   }
}"