Why is my account auto-suspended?

I'm trying to log in my account but found this error. Why? Please, help me!

Dear Matheus,

I checked your account and I noticed it is auto-suspended by our anti-phishing filter, I have also checked your forms and I found them both are built in accordance with our Terms of Use. In sight of that, I reactivated the account as suspension was due to an error.

Regards.