Your DORMS username is the email address you used when applying for the program. Note that your login for DORMS and Disney Cast Life will be different.
If you have changed your email within DORMS, you will receive communication at the new email address entered, but your DORMS username will not change.
Verify that you are visiting the participant registration site by clicking this site link: https://dorms.disney.com/login
Visit the DORMS Guide (Click here) for more information about using DORMS and troubleshooting technical issues like this one.
If you still need assistance, submit a request to the Disney Programs team by clicking here.
DORMS Password Reset Walkthrough