Follow below mentioned steps to change your email ID:
1. Go to InstaVR console's "Account" tab (by selecting the drop down menu next to your username).
2. Click on "Change Email" under "Basic Information".
3. Enter new email ID and click on Send a verification button.
4. Verification mail will be sent to you on your new email ID. Follow verification steps and your InstaVR registered email ID will be changed which you can use to login to https://console.instavr.co/.