I know you're like oh my god its such a long post but please read it :(

I used to play on this server a fair long time ago, around early this year. My old username was jimmy8390 and I made a new one because my friend has been dying for a minecraft account, so I gave him my account and bought myself a new one. So I applied today and I whitelisted my new username jellytrain. But when I tried logging in it says ''Disconnected by Server', The Ban Hammer has spoken!'' And I don't even know why I was banned. I'm thinking that maybe after I stopped playing World of Minecraft I got banned shortly after and I don't even know why. My friend however doesn't play this server anyway (he plays skyblock and pvp servers). I'd just like to know why my old username jimmy8390 was banned or my IP was banned and hopefully I could start playing my favourite server again. However if I do get unbanned for what reason, is it possible that I could retrieve all the builds and claims that I used to have? Not the money or inventory but just the claims, houses, farms and chests that I own. If your thinking that i'm not jimmy8390 or anything you can even do an IP check and prove that i'm the real jimmy8390. I'd just like to play my favourite server again like I always used to :( Please unban me and also tell me why I was banned in the first place because it didn't show me a reason to as why I was banned. Thanks for reading.  :)

-jellytrain aka jimmy8390