[Fizzlemizz]

With the talent reset I haven't updated most of my characterss (and the Era PTR isn't available) so this is just what I would have done first.

Changed:

local playerRole = LibClassicSpecs.Role

to:

local playerRole, specIndex

And then in the PLAYER_ENTERING_WORLD event, added:

if not playerRole then
    specIndex = GetSpecialization()
    playerRole = select(6, GetSpecializationInfo(specIndex))
   print("playerRole", playerRole, specIndex) -- What did we get?
end

That should get you a playerRole of "TANK", "HEALER", "DAMAGER" at login.

Then you could use:

if playerRole == nil then
        --xxx                Text:SetText(hexa.."No Stats"..hexb)
else
    if playerRole == "TANK" then 
        UpdateTank(self)
    elseif playerRole == "HEALER" then
        UpdateCaster(self)
    elseif playerRole == "DAMAGER" then
        UpdateDamager(self)
    end
end

You would need to handle updating when changing/adding talents during a session.

I would probably do most/all class, spec. etc. initialisation at PLAYER_LOGIN or the initial PLAYER_ENTERING_WORLD rather than just as your addon is loaded as it gives the game some time to know more about you current character.