It's suspended due to high server load, specifically CPU usage. This is usually due to things such as code being stuck in a loop, processes that aren't exiting when finished, running scheduled tasks too frequently, or forgetting to close SFTP connections when you're done with them.
Since it's been suspended for more than 24 hours there aren't many details available.
Please watch your load here: https://heliohost.org/dashboard/load/ and make any adjustments needed to keep your load down. If you have questions, feel free to ask.
Unsuspended. Your account can take up to 2 hours to function.