My game keeps crashing when I open a level

Development Programming & Scripting
,
1

I recently wanted to make a racing game for fun.
I made all the mechanics, the HUD, etc…
And now I wanted to import a Megascan map (level) into my game.

Now every time that I try importing it, it crashes (Lit config, expect when I put it in Unlit it stays frozen 5 seconds, then crashes)

The map is called Racing Track - Forrest by Dexsoft Games.

Here is the crash report:

Fatal error: [File:D:\build\++UE5\Sync\Engine\Source\Runtime\RHICore\Public\RHICoreShader.h] [Line: 158] Shader expected a uniform buffer at slot 3 but got null instead (Shader='<unknown>' UB='Substrate'). Rendering code needs to set a valid uniform buffer for this slot.

UnrealEditor_D3D11RHI
UnrealEditor_D3D11RHI
UnrealEditor_D3D11RHI
UnrealEditor_RHI
UnrealEditor_Renderer
UnrealEditor_RHI
UnrealEditor_RHI
UnrealEditor_RenderCore
UnrealEditor_RenderCore
UnrealEditor_Renderer
UnrealEditor_Renderer
UnrealEditor_RenderCore
UnrealEditor_RenderCore
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_RenderCore
UnrealEditor_RenderCore
UnrealEditor_Core
UnrealEditor_Core
kernel32
ntdll

My viewport window is very small, and I run on an NVIDIA GeForce RTX 2080 SUPER.
Could anyone solve my issue?

Thanks, Victor

PS: if you need any additional info about my config, just ask me.