High Resource Usage
To prevent abuse to the free hosting servers, x10 has implemented a policy where it suspends accounts that reach and bust the limit placed on server resource usage. This means that resource intensive scripts can possibly get flagged by the system, even if it's the only time they will be ever ran.
High Resource Usage is a minor suspension as too you can unsuspend yourself for the first 2 times. After that, you will have to create a ticket and have a Community Support Representative unsuspend you.