Streaming problem with Twitch with Obs Studios?

Hi guys I recently got a Twitch acount and started recording OBS Studio. Then I streamed for about an hour and noticed at the end that it does not record the game properly but only a window has come in my desktop background was recorded. And I do not know where a mistake is twitch? Whether studio? Or at the game (Need for Speed most wanted)?

It's up to your attitude in the obs.

Bottom left you have to set the streaming window