Application crash detected (Fortnite) and LoL crashes what to do?

I have problems with my PC. I thought it was the hardware that I mostly replaced, but the problems are still there. Fortnite, for example, does not work for me at all, it does come into the menu but as soon as I'm in the lobby it crashes from "Application Crash detected". The League of Legends game also has problems, sometimes the PC freezes and I have to restart the PC. But LoL crashes too and I just have to reconnect.

Here's the data from my PC:

CPU: AMD Ryzen 5 1400

Mainboard: ASRock A320M-DGS

GPU: Geforce GTX 1070TI

RAM: 8GB DDR4

Hard disk: 860 Evo 500GB

Power supply: BeQuiet 750W

I have also informed myself whether I should not update the bios because it is an old version but not yet done because the question is whether it would bring anything.

Maybe the game is bothered by any other software that is running at the same time or is installed on your computer.

I have already formatted the entire hard drive. And just downloaded the game.