You are receiving an error message indicating that we cannot detect your Epic issue type.
There are two primary reasons for this:
1. Your board filter query excludes the Epic issue type.
To remedy this please examine your board filter query for anything that may limit the board by issue type. If you would like assistance troubleshooting the JQL please send through a copy and I would be more than happy to help.
2. Your Epic issue type has been deleted or renamed in this project.
To check whether this is the case please navigate to the "Issue Types" screen in the Settings menu and ensure that your Epic issue type exists, and contains both the "Epic Name" and "Epic Status" Fields are visible on all associated screens.
If they are not, please add them on all applicable screens.