Beagle is a Destiny Error Code.
The Solution: Delete and then reinstall Destiny. Here's how to do so on each of Destiny's four systems:
PS4:
Select Destiny on the home screen Press the Options button Select the Delete option Reinstall (or re-download) Destiny
PS3:
Find Destiny under the Games section of the XMB Press the Triangle button Select the Delete option Reinstall (or re-download) Destiny
Xbox One:
Find Destiny in the My Games and Apps section Press the Menu button Select the Uninstall option Reinstall (or re-download) Destiny
Xbox 360:
Go to Settings -> System -> Storage and select the storage device Destiny is installed on Find Destiny Select the Delete option Reinstall (or re-download) Destiny