Since the launch of the early access Destiny 2 Beta yesterday, Bungie Help has been busy keeping players updated on the status of various error codes, including Termite, Moose, and Weasel.
If you’re wondering just what those error codes mean, Bungie has updated their Help site with details on the most common issues:
Weasel

We are investigating reports of error code WEASEL in the Destiny 2 Beta that returns players to Orbit when they attempt to complete Activities or inspect gear.

Termite

We are aware of an issue that may cause players to encounter error code TERMITE in the Destiny 2 Beta during times of high sign-on activity. Players that encounter this error code should restart the Destiny 2 Beta application before trying to login again.
Moose

We are investigating reports of error code MOOSE in the Destiny 2 Beta. Players that are encountering this error code in the Destiny 2 Beta should relaunch their activity.

Bungie says they’re also tracking Horn, Harp, Guitar, Flute, and Fiddle networking errors.
And these are the known issues with the Destiny 2 Beta:

Players may experience a variety of networking error codes when attempting to play the Beta
Bungie will be testing server stability throughout the Beta, which may cause error codes to appear periodically
Location names sometimes do not appear during Crucible gameplay
Players sometimes are Kicked to Orbit after witnessing a black screen when entering a Countdown match
Players may sometimes be pl...