WowAce

Loading Shadowed Unit Frame on the PTR produces the following error immediately:

Message: ...terface\AddOns\ShadowedUnitFrames\modules\layout.lua:482: Division by zero
Time: Thu Sep 16 13:31:19 2021
Count: 2
Stack: ...terface\AddOns\ShadowedUnitFrames\modules\layout.lua:482: Division by zero
[string "@Interface\AddOns\ShadowedUnitFrames\modules\layout.lua"]:482: in function `SetupText'
[string "@Interface\AddOns\ShadowedUnitFrames\modules\layout.lua"]:144: in function `Load'
[string "@Interface\AddOns\ShadowedUnitFrames\modules\units.lua"]:308: in function `SetVisibility'
[string "@Interface\AddOns\ShadowedUnitFrames\modules\units.lua"]:613: in function <...nterface\AddOns\ShadowedUnitFrames\modules\units.lua:440>
[string "=[C]"]: in function `SetAttribute'
[string "@Interface\AddOns\ShadowedUnitFrames\modules\units.lua"]:964: in function `LoadUnit'
[string "@Interface\AddOns\ShadowedUnitFrames\modules\units.lua"]:1337: in function `InitializeFrame'
[string "@Interface\AddOns\ShadowedUnitFrames\ShadowedUnitFrames.lua"]:268: in function `LoadUnits'
[string "@Interface\AddOns\ShadowedUnitFrames\ShadowedUnitFrames.lua"]:86: in function `OnInitialize'
[string "@Interface\AddOns\ShadowedUnitFrames\ShadowedUnitFrames.lua"]:915: in function <...ace\AddOns\ShadowedUnitFrames\ShadowedUnitFrames.lua:913>

There are follow-on errors due to the broken config caused by the above error resulting in symptoms like buffs and unit names not working.