@johngonole I had the problem on 2 servers. On the first server I'm not the Admin, so I'm not sure if this is the newest version. But on my testserver I had the same problem too with the newest version of the plugin. On my Testserver I tried the us and eu api, none of them works. As database I used sqlite. The strange thing is: If you ban someone you can use /check until you restart your BungeeCord. After the restart I can't use /check or /unban for the banned player, every time I try this I get the Error that the UUID can't be found. I think this should be fixed.