Crashed when world was saving with contraption with Trash Can.

Filling an issue just so bug is visible. If anyone else encounters this, check logs for line java.lang.NullPointerException: Cannot invoke "com.juh9870.moremountedstorages.ContraptionStorageRegistry.getRegistryName()" because the return value of "com.juh9870.moremountedstorages.ContraptionItemStackHandler.registry()" is null. If there's nothing like that in your log then please send it in new issue.

Well this one was ridiculously easy ed761bb