I will check the card background it is probably some form issue since I removed some parts from it, will investigate and fix it (if you need a quick approach you can change it via robomongo in servers collection).
I will update the CoD4x build and attach it on github.
Actually once the web kick a black SS player his ID is added to black list, in that case when he rejoins the server since he is on the blacklist the web should execute on him command "getss". maybe something is not working properly, will look at that and ask you in future to test it out. The only situation what I can imagine why is it not working is next.
You join the server with black SS profile, "getss" command is executed and you are kicked and added to the blacklist.
You rejoin the server with non black SS profile and the getss command gets again executed on you since you are on the blacklist, the screenshoot arrives and the website removes you from the blacklist since your screenshot is normal (not black).
From now on you are not on the blacklist and you can again join the server with black SS profile and you will be not kicked since you are not on the blacklist on the web.
But if any admin executes on you the getss command if you have a black one you will be re added to the blacklist.
The website executes only once the getss command when you join the server, if you already visited the server and you exist in the database the getss will not be executed (with other words if you exist on page "Players Data" on the website the getss command will not be executed on you since you are an old known player)
I will create a separated forum post for Julia plugin futures, nehoscreenshot plugin is included in julia and since the banlist is stored on the web you don't need any ban plugins. When the player joins the game server before he can connect the plugin checks if he is banned on the website