You were banned as you got your 4th warning. 4 warnings = a ban.
You in the past have been using them knowing they're a banned item, and rather than reporting these, also chose to use them. Your warning wasn't just for this, but also due to a number of reports from players about how you've been acting on the servers.
As this is only a temp ban, it won't be lifted
I've attached an image of you telling someone to use the braziers https://kineticnetwork.net/wp-content/uploads/2021/07/unknowns.png