Clear your web browser's cache and/or restart the browser. This should clear up the issue and allow you to log in.
If you don't know how to clear your web browser's cache, check out your browser's Help section for directions.
No worries. You most likely did not sign up for an actual email account during your activation, but rather, asked for an email alias/forward. Just email us at support@otherpeoplespixels.com and we can help you set up an email inbox instead, if this is what you'd prefer.