You need to be using the latest version of Gantry 5 5.5.11 and latest version of Callisto v1.5.0 (to download that you will need an active subscription).
Please would you post your URL, superuser id and pswd in the secure tab of your post and I'll have a look for you.
Regards, Mark.
Please search forums before posting. Please make sure your post includes the version of the CMS you are using and a link to the problem. Annotations on screenshots can also be helpful to explain problems/goals. Please use the "secure" tab for confidential information.