I seem to be having a problem with the "Better Loot Tables" datapack (https://www.planetminecraft.com/data-pack/better-loot-tables-mobs-structures-blocks/). Whenever I try and open a world an error pops up,
"Errors in currently selected datapacks prevented world from loading. You can either try to load it with only the vanilla data pack ("safe mode"), or go back to the title screen and fix it manually."
Here are the logs: https://paste.gemwire.uk/view/68e5dd32