4x Dominos-5.4.0\menuBar.lua:123: attempt to index local "button" (a nil value)
Dominos-5.4.0\menuBar.lua:123: in function "AddButton"
Dominos-5.4.0\menuBar.lua:113: in function "LoadButtons"
Dominos-5.4.0\menuBar.lua:48: in function "New"
Dominos-5.4.0\menuBar.lua:344: in function "Load"
Dominos\Dominos-5.4.0.lua:156: in function "Load"
Dominos\Dominos-5.4.0.lua:52: in function <Dominos\Dominos.lua:49>
(tail call): ?

:"safecall Dispatcher[1]":9: in function :"safecall Dispatcher[1]":5
(tail call): ?
Ace3-Release-r1086\AceAddon-3.0\AceAddon-3.0-12.lua:558: in function "EnableAddon"
Ace3-Release-r1086\AceAddon-3.0\AceAddon-3.0-12.lua:651: in function <Ace3\AceAddon-3.0\AceAddon-3.0.lua:636>

FrameXML\UIParent.lua:302: in function "UIParentLoadAddOn"
FrameXML\UIParent.lua:325: in function "CombatLog_LoadUI"
FrameXML\UIParent.lua:723: in function <FrameXML\UIParent.lua:686>

Locals:
nil

That's expected with the beta version for WoW 5.4