Third party programm error?

In last few weeks my games crash very often after around 30 minutes of game with this message: " A critical error has occurred and the process must be terminated. This is usually due to the result of incompatible third party software being installed on your machine. Please disable any overlay, streaming, or experience 'enhancement' software. additionally, you may need to whitelist this application with your installed security software. if you need further assistance, please visit the support website for help. "In last few weeks my games crash very often after around 30 minutes of game with this message: " A critical error has occurred and the process must be terminated. This is usually due to the result of incompatible third party software being installed on your machine. Please disable any overlay, streaming, or experience 'enhancement' software. additionally, you may need to whitelist this application with your installed security software. if you need further assistance, please visit the support website for help."

I lost much ranked games because of this. Please guys if you have any solution tell me how to fix this annoying error. I do not have any game changing programmes or cheat engines installed, and i never owned.

If you do not know how to fix this can you tell me where can i contact riot developers directly. Thanks in advance.