Can't Fly or Go in Water

[Baibrama]

If I fly or swim the game goes into super lag mode. The addon error relates to nibRealUI. I don't know where else to post this:

1676x nibRealUI\Modules\Pitch.lua:93: attempt to call field 'GetUnitPitch' (a nil value)
nibRealUI\Modules\Pitch.lua:93: in function 'UpdatePitch'
nibRealUI\Modules\Pitch.lua:77: in function <nibRealUI\Modules\Pitch.lua:67>