It has been brought to my attention that there has been a few issues for some trying to register or login to the site.
Please read entries below. Apologies for any inconvenience caused.
You may also need to disable any autocompleting or saved passwords in your browser.
If the issue persists, please try using a different browser to determine if the issue is browser-specific.
Unresolved, cause of error located.
Site visitors attempt to sign up to join the site and get this error message.
The problem is caused by using Uppercase letters in the email address when signing up for a WebsID.
No solution yet, but the issue has been given to the engineers and has a high priority, so should be resolved fairly soon.
In the meantime, you can ask your site visitors to use only LOWER case letters for their email address when signing in.