@EA_Blueberry hello, i edited my post, now you can find the DxDiag under the picture in my post.
For fixing this problem, i ran some test of the system and hardware, but everything seems fine. And i just upgraded my system, and after the upgrade i only played 2 matches, so the problem didnt appear yet, because it always happens randomly.
I'm looking forward to you further help, thanks very much!