What steps will reproduce the problem?
1. Adjust width Weight by sliding scale. When it hits 0 this happens.

ShadowedUnitFrames\modules\layout.lua:478 Division by zero
ShadowedUnitFrames\modules\layout.lua:478 in function `SetupText'
ShadowedUnitFrames\modules\layout.lua:143 in function `Load'
ShadowedUnitFrames\modules\layout.lua:106 in function `Reload'
ShadowedUF_Options\config.lua:219 in function <ShadowedUF_Options\config.lua:213
ShadowedUF_Options\config.lua:249 in function <ShadowedUF_Options\config.lua:239
ShadowedUF_Options\config.lua:265 in function <ShadowedUF_Options\config.lua:253
ShadowedUF_Options\config.lua:1725 in function <ShadowedUF_Options\config.lua:1723
(tail call): ?
[C]: ?
[string "safecall Dispatcher[2]"]:9: in function <[string "safecall Dispatcher[2]"]:5>
(tail call): ?
...nfig-3.0\AceConfigDialog-3.0\AceConfigDialog-3.0-60.lua:799 in function <...nfig-3.0\AceConfigDialog-3.0\AceConfigDialog-3.0.lua:614
...nfig-3.0\AceConfigDialog-3.0\AceConfigDialog-3.0-60.lua:851 in function <...nfig-3.0\AceConfigDialog-3.0\AceConfigDialog-3.0.lua:839
(tail call): ?
[C]: ?
[string "safecall Dispatcher[3]"]:9: in function <[string "safecall Dispatcher[3]"]:5>
(tail call): ?
Masque\Libs\AceGUI-3.0\AceGUI-3.0-34.lua:314 in function `Fire'
...sque\Libs\AceGUI-3.0-34\widgets\AceGUIWidget-Slider.lua:70 in function <...sque\Libs\AceGUI-3.0\widgets\AceGUIWidget-Slider.lua:60

Locals:
nil