My virtual server has been suspended :(

Hi,
My VPS has been suspended with the following message:
'This virtual server has been suspended by the administrator. Please contact support'

Server: 5.231.7.175
Hostname: codeplace
Email: angela.busby [at] outlook.com

I've been running an Asterisk (VOIP) server since last September, and of course never violated Host1free rules. The server is for private usage and development.
Nothing has been changed on the server on last days (besides a simple reboot).
You can check my server and verify.

Please unblock me I have important data there.

If you need further info just ask
Thank you