I can see an error message that says there is already an account associated with my email address
This means that you may already have an account with ArtRabbit. Scroll down
on the login page and click on the 'Forgotten Password' link.
Enter your email address, and we will send you an email about resetting your
password.
If you definitely don't already have an ArtRabbit account, or you think that your
email address is being used without your permission, please contact us at
support [at] artrabbit.com