Unreal Crashes when trying to open project

Help! My project keeps crashing when trying to open, can anyone help? Im due to hand in this work for my MAarch and really worried Ive lost my work :frowning:
Im on 5.3.2 and it reads:

ā€˜Assertion failed: IntFitsIn(In) [File:D:\build++UE5\Sync\Engine\Source\Runtime\Core\Public\Templates\UnrealTemplate.h] [Line: 163] Loss of data caused by narrowing conversionā€™

Can anyone help me out?

Might be a project setting that broke somehow. This kind of crash sometimes happened with Virtual Shadow Maps back in 5.0. Can you paste the contents of your projectā€™s latest Saved/Crashes log?