Hi guys!
I never received any warnings and just today I received a ban.

Sorry inturist, you are banned from posting or sending personal messages on this forum.
You have been banned by a forum moderator. You may appeal here: banappeals-w6pquw43@theymos.e4ward.com

When I tried to create a new account in order to find out the reason for my ban, a new account received a warning about: You are unable to post. How to enable posting.( proxyban). What does it mean? Is my ip address blacklisted? But I use bitcointalk from home and at work so when I was at work I got a ban 
Can You help me? Maybe it was mistake.
 
According to this point I can create another account and creating a thread in Meta about my ban.
 "25. If you get banned (temporary or permanently) and create a new account to continue posting / sending PMs, it's considered ban evasion. The only exception is creating a thread in Meta about your ban."