When reporting an issue, please try to reproduce the issue with just Dominos and Dominos_Config running. Dominos reuses a good chunk of the stock UI, and other popular addons, like Move Anything, like to take control of those parts, too.

Addon Version
You can get this via running /dominos version in game
9.0.2-Retail

World of Warcraft Version
For example, Classic, Retail, PTR, Beta.
9.0.1 (36230) (Release x64)

honorBar.lua
Line 21
InActiveBattlefield was relocated and renamed C_PvP.IsActiveBattlefield

This should be fixed in the 9.0.3 release