Hello,
You were suspended for High Resource Usage, that is, using more than your fair share of CPU/RAM for an extended period of time.
I have unsuspended your account this time, but in the future you may unsuspend yourself for High Resource Usage suspensions. See our wiki page on
High Resource Usage for more info on High Resource Usage and how to prevent it, and our page on
Suspensions for more info on how to unsuspend yourself.