Error message
 

NUI 6 Beta also loaded.

1x nUI-5.07.08 (Plus)\Bars\nUI_PowerBars.lua:58: attempt to index global 'nUI_HUDUnit_PlayerTarget_Castbar_Casting' (a nil value)
nUI-5.07.08 (Plus)\Bars\nUI_PowerBars.lua:98: in function <nUI\Bars\nUI_PowerBars.lua:91>

Locals:
self = PTM_Frame {
0 = <userdata>
unit = "player"
}
event = "PLAYER_ENTERING_WORLD"
arg1 = nil
arg2 = nil
arg3 = nil
arg4 = nil
arg5 = nil
arg6 = nil
_ = "Paladin"
class = "PALADIN"

Make sure you have nUI 6.04.03.02 installed... that will fix this error.