I'm gettin the following error for a while:

4x ElvUI\Modules\skins\Skins.lua:392: does not exist.
[string "=[C]"]: ?
[string "@ElvUI\Modules\skins\Skins.lua"]:392: in function HandleMaxMinFrame' [string "@ElvUI\Modules\skins\Blizzard\DressingRoom.lua"]:21: in function <ElvUI\Modules\skins\Blizzard\DressingRoom.lua:6> [string "=[C]"]: ? [string "@ElvUI\Modules\skins\Skins.lua"]:1331: in function <ElvUI\Modules\skins\Skins.lua:1326> [string "=[C]"]: ? [string "=[C]"]: ? [string "=[C]"]: ? [string "=[C]"]: ? [string "=[C]"]: ? [string "=[C]"]: ? [string "=[C]"]: ? [string "@ElvUI\Core\Core.lua"]:1235: in function CallLoadFunc'
[string "@ElvUI\Core\Core.lua"]:1250: in function CallLoadedModule' [string "@ElvUI\Core\Core.lua"]:1276: in function InitializeModules'
[string "@ElvUI\Core\Core.lua"]:1534: in function <ElvUI\Core\Core.lua:1512>

While trying to fix it, I found out that it has to do with the minimize/maximize button on the Dressing Room.
ElvUI tries to skin that button even though DressUp is enabled and the button does not exist.