Researching supply signal?

hello im the admin of server
and i found out there is a supply signal blueprint
being sold by users
i checked it out in my co-steam account and it was real
how can they get blueprint? it costs socheap 50gunpow 20 metal
is there a plugin or settings to ban that?
(btw i use better loot 50% airdrop)

 

I think you have BetterLoot installed, yes?

 

There is a controller plugin that CAN ban craftings (CraftingController)

 

I'm having the same issue, why is the supply signal blueprint in the default loot table? I'm running no mods that modify the loot tables.

 

We cant Ban Items
With that plugin

keep says this even proper name

wrong item name please use name in the item list EX Camp Fire

even i input /block Camp Fire

Nope It wont work

 

You try putting it in quotations?