In my world, if I left my things, they are only in my gunpowder farm. The carts with funnels are disappearing. Please fix this and I play it sometimes, it also leaves automatically.

In my world my things are disappearing, for example, in my gunpowder farm, the carts with funnels are disappearing all the time, then I lose a lot of iron making a cart with funnel.
And the game sometimes comes out automatically too.