You were detected by the server and banned for hacking when you tried to join. As I said before you have 8 punishments a recent ban.
If you
reallly want to appeal you ban edit your post to use the following template:
[b]Name -[/b] What is your in-game name?
[b]STEAM-ID -[/b] What is your STEAM-ID?
[b]Admins Name -[/b] Who banned you/who might it be?
[b]Reason -[/b] What is/might be the reason that you got banned?
[b]Server -[/b] What server did you get banned from?
[b]Time -[/b] How long were you banned for?
[b]Story -[/b] What happened?
[b]Proof -[/b] Any proof on a video/screenshot that clearly show what happened?
[b]Extra Information -[/b] Any thing you think may be relevant to your ban.
However, bare in mind that you should wait a while longer in my opinion as the ban was today. It's very likely it will be denied again.