Invalid Resource Packs

I have a copy of both an mcpack file and a zip file which work on vanilla mcpe, but when I put it onto my server, they don't work and the server throws an exception. What can be done to the pack to fix the issue?
https://codecrafted.net/
http://mcpedl.com/vanilla-tweaks/

Code:

[Server thread/CRITICAL]: InvalidStateException: "Could not load resource pack from C:\Users\Jason\Documents\Minecraft\PocketMine-MP KitPvp\resource_packs\\VanillaTweaks.mcpack: manifest.json not found" (EXCEPTION) in "src/pocketmine/resourcepacks/ZippedResourcePack" at line 79

 

You could try to rename pack_manifest.json into manifest.json (Look inside the zip archive)

 

I already did that, but shouldn't pocketMine already be able to use the pack if it can be used in mcpe already?

 

Is there another method I can use? I only have iOS mcpe and I can't get the file back easily