Error while deserializing and unable to resolve blockentity

I just updated my minecraft server to 1.15 and got a bunch of errors when I loaded in:

• Ignored advancement 'minecraft:recipes/misc/sugar' in progress file .\world\advancements[REDACTED2].json - it doesn't exist anymore?
• Error while deserializing minecraft:hay_pile
• Error while deserializing minecraft:cactus
• Tried to load unrecognized recipe: minecraft:sugar removed now.
• Unable to resolve BlockEntity for ItemStack: minecraft:air

What do you guys recommend doing to fix this?