[Xrystal]

rofl, just realised I was getting confused with the mage portal addon itself. Not sure if they added or removed profession stuff.

Anyways,

you might want to try changing this block of code in that file:

local function UpdateCooldown(self)
        local TimeNow = GetTime();
        local CooldownStart, CooldownDuration, CooldownEnabled = GetSpellCooldown(SpellName);
        if ( not CooldownEnabled ) then return; end
        if ( CooldownDuration == 0 ) then return; end   
        local DiffTime = TimeNow - CooldownStart;
        local CooldownCounter = CooldownDuration - DiffTime;
        CooldownCounter = math.floor(CooldownCounter);
        if ( CooldownCounter > 0 ) then 
            self.Text:SetText(CooldownCounter); 
        else
            self.Text:SetText("");  
        end
    end

to

local function UpdateCooldown(self)
                           >>>> if not Available then return end  <<<<<
        local TimeNow = GetTime();
        local CooldownStart, CooldownDuration, CooldownEnabled = GetSpellCooldown(SpellName);
        if ( not CooldownEnabled ) then return; end
        if ( CooldownDuration == 0 ) then return; end   
        local DiffTime = TimeNow - CooldownStart;
        local CooldownCounter = CooldownDuration - DiffTime;
        CooldownCounter = math.floor(CooldownCounter);
        if ( CooldownCounter > 0 ) then 
            self.Text:SetText(CooldownCounter); 
        else
            self.Text:SetText("");  
        end
    end

This way it should only try updating the cooldown if the ability is known to the player.