This is usually the result of too many failed login attempts from your location. This means you likely have the wrong password either for Cpanel or for one of your email accounts.
You can try to unblock yourself using ReCAPTCHA:
Submit a ticket with the following information and we will unblock you:
Your blocked IP address is: 18.190.217.122
The hostname of this server is: svr3.acornhost.com
The most common reason this kind of block happens is when you have a device checking email automatically every few minutes and it has the wrong password. The second most common reason is having an incorrect Cpanel password. After 10 failed attempts, you are automatically blocked.
If you have an incorrect password set in your phone, and it is set to keep checking, you will continually get re-blocked until you fix it. You can request a temporary whitelist of one hour when you submit a ticket. We can also help you determine which email is responsible for the failed authorization attempts.
This block affects your ability to connect to the server, meaning you cannot see your website, log in to Cpanel, or check your email. It does not affect anyone else's ability to see your website. An IP address is assigned to each internet connection, so you will have a different IP if you connect via home wifi or via cellular data.
We recommend using a password manager to store your Cpanel password, and double-check all your devices have the correct email passwords.