Looks like a missing device used to produce a different error, and was also fixed in the first cut of 2.2.8... Still worth checking though, you never know.
You can remove the app by clicking on the gear icon either on that page, or on the Apps list page next to that app in the list. At the bottom of the page that opens is a button to remove the app.
The upcoming 2.2.8 release has a fix for this issue, allowing these broken Scenes to not throw this error, but instead to identify the removed device and ignore it.
Hubitat Elevation Platform update 2.2.8 is now available:
Please note, the process takes about a minute to download (depending on your Internet connection) and extract the hub update, and 1-2 minutes to perform the update after you click 'Update Hub'. We recommend that you periodically download a backup of your setup from the Settings page, Backup and Restore. See Warning below about rolling back from 2.2.8 to 2.2.7.
Changes from 2.2.7:
Drivers and Devices
New drivers:
Neo Z-Wave Repeater …
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