Every time i enter Acherus as a death knight, this error comes up.

Any ideas?

Thank you

Message: ...ns/SimpleClassPower/back-end/libraries/statusbar.lua:345: bad argument #1 to 'SetAlpha' (Usage: self:SetAlpha(alpha))
Time: Mon Sep 4 16:44:02 2023
Count: 12
Stack: ...ns/SimpleClassPower/back-end/libraries/statusbar.lua:345: bad argument #1 to 'SetAlpha' (Usage: self:SetAlpha(alpha))
[string "=[C]"]: in function `SetAlpha'
[string "@Interface/AddOns/SimpleClassPower/back-end/libraries/statusbar.lua"]:345: in function <...ns/SimpleClassPower/back-end/libraries/statusbar.lua:103>
[string "@Interface/AddOns/SimpleClassPower/back-end/libraries/statusbar.lua"]:421: in function <...ns/SimpleClassPower/back-end/libraries/statusbar.lua:359>

Locals: (*temporary) = Texture {
0 =
}
(*temporary) = -2.868104