i have your mod in my modpack and every time I leave and comeback to my world the missiles are gone

This also happens when reloading the chunks I think. the workaround I used was to forceload the chunks however every time the server restarts the missiles and explosives are gone.

Gone from what? In what situation?

so when I place the missile in the silo and then I leave and then join back into the world it is gone like completely gone not even in the silo also I was in creative if that changes something

I will look into this and fix it if i can :)