UE5 crashes when implementing landscape

I have tried to implement the landscape for a 3D game for 2 weeks and the UE always crashes. I am currently using a UE 5.0.3 in a MacBook Air, and have tried doing the same thing with other versions (like 5.1 and 5.4). However both versions crashed before they could be launched, and now I’m stuck in a groundless level where I can’t do anything else.

I would appreciate it if anyone could help me in this matter. Thanks :))