If your Resource Pack isn't loading, this guide may help you.
To enable the PvPCade Resource Pack, head into your Multiplayer Menu, find the PvPCade Server, and click the Edit button.
Once you click Edit, a new menu will open. From here, all you have to do is ensure "Server Resource Packs" is set to Enabled.
And you're done! You should be able to properly load the PvPCade Resource Pack. If this didn't solve your problem, please reach out at https://www.pvpcade.com/discord.