If you're here, that means you were banned from Super TerrainCraft. If you really want to have a chance to come back, I want you to write me an appeal as to why you think you should be allowed back. You should include what you were accused of in the ban message and what you plan to do in the future in order to be allowed back.
In cases of stuff like duping, griefing, xraying, etc., you will most likely be rolled back to a point before you joined the server and all of your chests, houses, mines, etc. removed.
Please submit your appeal to your ban as an email sent to appeals@stcserver.net.