I am currently playing a mage. If I click on Rune of Power when not in combat I get the following error -

1189x Ovale\dist\Totem.lua:87: attempt to compare nil with number
Ovale\dist\Totem.lua:87: in function IsActiveTotem' Ovale\dist\Totem.lua:167: in function GetAvailableTotemSlot'
Ovale\dist\Totem.lua:148: in function SummonTotem' Ovale\dist\Totem.lua:81: in function ApplySpellAfterCast'
Ovale\dist\State.lua:67: in function ApplySpellAfterCast' Ovale\dist\Future.lua:978: in function ApplySpell'
Ovale\dist\Future.lua:1006: in function ApplyInFlightSpells' Ovale\dist\BestAction.lua:721: in function StartNewAction'
Ovale\dist\Frame.lua:145: in function <Ovale\dist\Frame.lua:121>
(tail call): ?

Locals:
InCombatSkipped

If I am in combat and use Rune of Power the error doesn't appear.