Install an Izakji's Zombie Apocalypse server through the Control Panel (Servers → Select your server → Game servers → Add Game Server → Izakji's Zombie Apocalypse)
I’m used to using a different hosting site that always makes things complicated for starting a modded server. Even if it’s just one pack. Scalacube was suggested by a friend and it was so easy to set up. Even for all the mods mod packs. No file transferring necessary. Managing all my servers has been a piece of cake! Thank you