I tried to login using the details you have provided but they seem to be incorrect.
Would you mind double checking so that we can have a look?
For the meantime, please double check if you have both X and Cornerstone updated to the latest version. Here is a link for a details information on how to do an update:
Please remember to clear all caches when updating so that the code from the latest release is always in use. This will help you to avoid any potential errors or any unexpected display issue on the site.