My Xbox Series S keeps turning off, but it's kind of strange.

So, yesterday I wanted to turn on my Xbox Series S to play a game, but the problem is that it shuts down after 2 minutes without warning. I tried again, and the same thing happened.Then I wanted to remove the USB cable from the Gamesir, since it was frayed at the Type-C end, and it let me play without any problems.Has anyone else experienced something similar? Could it be the power supply or the Gamesir cable?