Resource Pack Troubles

So I'm trying to play Wynncraft for the first time on my MacBook, and I'm encountering some issues. I first would like to mention that I am playing with Optifine 1.19.2, so if that is an issue I can run normal Minecraft. I also would like to bring up the fact that Minecraft functions just fine on my MacBook in most situations, except for being unable to run modpacks that are too big for it to handle. With that out of the way, the issue:
When I logged onto the server, I made sure I had "Resource Packs" enabled for the server. I entered into the server, confirmed that I wanted to "automagically" download the resource packs, and then it paused for a moment, some error flashed on the screen for a split second and then it loaded in without the resource pack. I tried following several guides, to no avail. A list of what all I tried will be below. One last thing I would like to mention before that list, however, is that I think it'd be a good idea if Wynncraft's resource packs were available on a website where you can just download the required version. If that exists, then please link it.
1. Restarting Minecraft
2. Deleting any files under "server-resource-packs" and reattempting to download them
3. Going to the link provided in-game
4. Tried downloading a .zip file of the resource pack from online but it was an earlier version

 

The official discord has the latest pack zips pinned in the #questions channel

 

Thank you! They don't actually have a 1.19 resource pack, but I was able to download the 1.18 pack and so far it seems to be working well.