Case-sensitive problem

Hi everybody,

I installed Epic Games Launcher and after installation I wanted to start Epic Games Launcher app, but it's not working. My Mac reports this: "Engine does not support running from case-sensitive file systems. Please install the application on a drive formatted as case-sensitive."

Attached you can see this warning message about some problem with case-sensitive. I tried to find what to do but nothing helped.

I have Macbook Air 13", 2017, OS Catalina version 10.15.6.

Can you help me to fix it? I dont wanna reinstall system...

Thank you,

Martin