Fatal error packaging

I’d like to package my project which uses Niagara Fluids Plugin.
I created an empty project with StarterContent, enabled NiagaraFluids plugin. I dropped the template Grid3D_FLIP_Pool NS from the plugin inside the map Minimal_default.

When I package the project for Windows, I don’t get any compiling error, but when I run the program, I get a Fatal Error.

In the crash log around the end of it, I find some lines like this :
Missing script import … for package…
Missing Dependency
Error : CreateExport :… Coud not find class object…

How do I solve this?

Unreal 5.0.2, Windows 10, RTX3070ti