some admin overreacted to me placing a baseplate outside the map so he banned me for 60 minutes
There's a specific rule against that, so you got banned for breaking a rule.
but when i come back he loving deletes my house
iirc they do this to clear up space and as an incentive to not forget up again. If you forget up and get banned, you loose your lot and have to start over again.
Stop calling the server stuff even though you're complaining about getting punished for breaking the rules. It's not their fault you have no idea how to follow rules.