Please fix Minecraft Helloween Mash Up Pack (4J Studio)

Minecraft Helloween Mash-Up needs to be checked for bugs because it has many issues like the grass has missing texture, sky and fog is missing too, please check Helloween Mash-Up pack for issues and fix them

I'll attach screenshots

Mashup pack needs to be checked for any issue and updated

it cost real money so please make it look like there is a reason to buy it with real money

I don't want to buy broken stuff that can't work right