Does it do this for any/all projects? it looks to me to be the engine having a problem more than something with the landscape, but I’m also not the best at reading the error logs and knowing exactly what they mean yet, i would try
Backup your projects and reinstall the engine,
Remember to take note of which plugins your using if any and the engine version before reinstalling
it may also be missing a trailer/loading screen or something if you ever set that up but usually it calls those movies so not likely that