Blog owners, with this problem, report receipt of the advice "Your account has been disabled" when they login, with a link to Google Accounts: Account has been disabled provided, for more information.
The important advice, on the latter page, is in the last paragraph.
Please start by reviewing the relevant Terms of Service. Then, if you think your account should not have been disabled, please contact us.
Clicking on "contact us", you are presented a form My account is disabled.
All fields on this form, presented in bold type face, are essential. The most important field for you, here, may be the question
Do you currently have access to the email address that you use to sign in to your account?If you select "No", you get
An email address we can use to contact youSince your GMail account has been disabled, you will need an alternate email address, which you provide there.
Having filled out the form, hit "Submit", and you get the predictable
Your request has been submittedAnd now, you wait. My personal experience with this, a few months ago, was maybe an hour of anxious waiting, before I got the email from Google announcing the reactivation of my account. Other people have had several days of anxiety. The observed variance may be similar to the known variance in the Blogger blog spam review process.