when I try to turn the word from blacklist to whitelist in the config it just disables vein mining any block instead of whitelisting all the blocks that are listed.

Please share your config settings.

I've also just tested this myself and can confirm that the whitelisting configuration option is working as expected.

https://pastebin.com/iSzDyaJV there is the config content

// List of whitelisted/blacklisted blocks or block tags
"blocks": [ 
],

Your whitelisted blocks are empty, so that's why it's not applying to anything.

did work. this is what I changed it too https://pastebin.com/SMkyMT8z . Did I do anything wrong

Thanks, it worked, and thank you for helping.

Yes, you have to wrap each entry in quotation marks.

Example:

"blocks": ["minecraft:iron_ore", "minecraft:diamond_ore"],