Hey there @TahaOrcunKara! Welcome to the community! This issue is stemming from a graphical problem. If it’s only that project, it could be something you introduced to the starting level. However if it’s all projects it’s more likely to be an issue with your GPU drivers or some setting in the environment in between.
My first recommendation is lowering your project RHI and see if you still crash:
or changing the starting level from your DefaultEngine.ini to another level in your project:
[/Script/EngineSettings.GameMapsSettings]
EditorStartupMap=/Game/ThirdPerson/Maps/ThirdPersonMap.ThirdPersonMap
Here’s a thread where I compiled tons of GPU based solutions (more geared towards a specific Nvidia based error but helps most GPU issues anyway).