marmoset plugin prevents me from packaging my project

first of sorry for my bad English ( and im still a noob in ue)

so i realized i couldn’t package my project (win 64 and 32) . i searched the internet all over . tried everything I could but couldn’t fix the problem then I discovered the marmoset scene importer caused it (tried a new clean project with and without it)

but I really need this plugin . can anyone help me?