if I try to use the mine command in baritone, it will say mining in chat, but then it will do nothing and it will say
"[BlockOptionalMeta{block=Block{minecraft:diamond_ore},meta=null}]"
if anyone could tell me what is wrong that would be very much appreciated.

not enough info, please fill out the bug report template and provide a game log so we can properly identify the problem
(you can do this in a comment here...)