It looks like you used MoveAnything to move your Skada window, then uninstalled Skada or Skada changed. Now, MoveAnything is trying to mess with a frame that no longer exists or doesn't exist by that name.
With WoW
not running (completely exit), open the file
World of Warcraft\WTF\Account\<accountID>\SavedVariables\MoveAnything.lua in a text editor, search for
SkadaBarWindowTotals, then delete that section. It will look similar to this:
MAKE A COPY OF THIS FILE BEFORE YOU EDIT IT
Lua Code:
["SkadaBarWindowTotals"] = {
["orgScale"] = 1,
["disableLayerBackground"] = true,
["name"] = "SkadaBarWindowTotals",
["orgPos"] = {
"BOTTOM", -- [1]
"UIParent", -- [2]
"BOTTOM", -- [3]
0, -- [4]
229.000015258789, -- [5]
},
["scale"] = 0.699999988079071,
["disableLayerArtwork"] = true,
["disableLayerBorder"] = true,
["pos"] = {
"TOP", -- [1]
"ExtraActionButton1", -- [2]
"BOTTOM", -- [3]
0, -- [4]
-24.9999923706055, -- [5]
},
},
Delete just that section, from the top line in the example above to the
}, right before the next named frame.