I get the following error with version 800000.6.5 installed. I deleted the files from saved variables as instructed. This error continues over and over until the client becomes unresponsive.

7318x daftUITweaks\UIFade.lua:65: attempt to index field '?' (a nil value)
daftUITweaks\UIFade.lua:65: in function <daftUITweaks\UIFade.lua:53>

Locals:
self = {
0 =
}
(for index) = 1
(for limit) = 4
(for step) = 1
i = 1
(*temporary) = nil
(*temporary) = nil
(*temporary) = "1"
(*temporary) = "Background"
(*temporary) = "attempt to index field '?' (a nil value)"
addonTable =

{
db = {
}
}
NameCVarArray = {
1 = "UnitNameFriendlySpecialNPCName"
2 = "UnitNameInteractiveNPC"
3 = "UnitNameFriendlyGuardianName"
4 = "UnitNameFriendlyPetName"
5 = "UnitNameFriendlyPlayerName"
6 = "UnitNameFriendlyTotemName"
7 = "UnitNameNonCombatCreatureName"
8 = "UnitNameHostleNPC"
9 = "UnitNameEnemyPlayerName"
10 = "UnitNameEnemyPetName"
11 = "UnitNameEnemyGuardianName"
12 = "UnitNameEnemyTotemName"
}