Ah, sorry about that. I saw a new error message after installation and then pasted it in without thinking. Carry on!
I downloaded your .jar file with the wget command in shell. I then renamed it SpawnControl.jar. When I ran my server, it reads: 12:04:33 [INFO]...
I guess what you would have to do is make it so that it's grounded on permissions. Make it so that to purchase something, you have to have that...
I'm setting up a server where two groups will be enemies. Is there any way to create one shop for each?
Separate names with a comma.