Statement of Agreement to COPPA Compliance Terms, please review http://www.google.com/apps/intl/en/terms/education_terms.html and http://www.coppa.org/comply.html
What service(s) are affected by the issue (e.g. Gmail, Calendar, Drive)?
Are you receiving any specific error messages? If so, please include the exact code or text of the message.
Do you experience this issue when logging in to your account from another browser or from a different network?