User is getting an error when trying to login to the Atlassian suite.
This usually indicates an issue with SSO or the method of login as this is not an Atlassian error.
Usually indicates wrong email address.
Things to try:
Make sure you are using your primary email address to login
Use Chrome as your browser
Clear cache and cookies
Try to log in using incognito mode in Chrome
Try to login to id.atlassian.com with your email address and then navigate to the instance
DO NOT use any other login methods