can't logon xMatters' website - https://hsbc.hosted.xmatters.com

when try to logon xMatters, will be rejected with below error message - We've run into a problem while retrieving your data. Refresh the page to try again or, if the problem persists, contact xMatters Client Assistance.

already connected to group - InfoDir-XMATTERS-User

would support help to advise how to fix this issue? thanks