Describe the bug
A clear and concise description of what the bug is.
4x Prat-3.0-3.9.32/modules/Font.lua:710: attempt to index field 'size' (a nil value)
[string "@Prat-3.0-3.9.32/modules/Font.lua"]:710: in function ConfigureAllChatFrames' [string "@Prat-3.0-3.9.32/modules/ChatFrames.lua"]:638: in function <Prat-3.0/modules/ChatFrames.lua:632> [string "=(tail call)"]: ? [string "=[C]"]: in function FloatingChatFrame_UpdateBackgroundAnchors'
[string "@Interface_WrathBlizzard_CombatLog/Blizzard_CombatLog.lua"]:3348: in function <...athBlizzard_CombatLog/Blizzard_CombatLog.lua:3334>
[string "@Interface_WrathBlizzard_CombatLog/Blizzard_CombatLog.lua"]:3403: in function FCF_DockUpdate' [string "@Interface_Wrath/FrameXML/UIParent.lua"]:2707: in function UIParentManageFramePositions'
[string "@Interface_Wrath/FrameXML/UIParent.lua"]:1958: in function <Interface_Wrath/FrameXML/UIParent.lua:1945>
[string "=[C]"]: in function SetAttribute' [string "@Interface_Wrath/FrameXML/UIParent.lua"]:2714: in function <Interface_Wrath/FrameXML/UIParent.lua:2712> [string "=[C]"]: in function UIParent_ManageFramePositions'
[string "@FrameXML/BuffFrame.lua"]:379: in function <FrameXML/BuffFrame.lua:312>
[string "=[C]"]: in function BuffFrame_UpdateAllBuffAnchors' [string "@FrameXML/BuffFrame.lua"]:120: in function BuffFrame_Update'
[string "@FrameXML/SettingDefinitions/InterfaceOverrides.lua"]:75: in function <...e/FrameXML/SettingDefinitions/InterfaceOverrides.lua:74>
[string "=[C]"]: ?
[string "@SharedXML/CallbackRegistry.lua"]:178: in function <SharedXML/CallbackRegistry.lua:177>
[string "=[C]"]: ?
[string "@SharedXML/CallbackRegistry.lua"]:181: in function `TriggerEvent'
[string "@SharedXML/CvarUtil.lua"]:114: in function <SharedXML/CvarUtil.lua:106>

Locals:
self =

{
SetDefaultModuleLibraries = defined @AdiBags/libs/AceAddon-3.0/AceAddon-3.0.lua:363
UnhookAll = defined @AdiBags/libs/AceHook-3.0/AceHook-3.0.lua:476
Enable = defined @AdiBags/libs/AceAddon-3.0/AceAddon-3.0.lua:290
NewModule = defined @AdiBags/libs/AceAddon-3.0/AceAddon-3.0.lua:231
db = {
}
EnableModule = defined @AdiBags/libs/AceAddon-3.0/AceAddon-3.0.lua:328
modules = {
}
GetModule = defined @AdiBags/libs/AceAddon-3.0/AceAddon-3.0.lua:206
IterateEmbeds = defined @AdiBags/libs/AceAddon-3.0/AceAddon-3.0.lua:438
baseName = "Prat-3.0"
SecureHookScript = defined @AdiBags/libs/AceHook-3.0/AceHook-3.0.lua:409
defaultModuleLibraries = {
}
OnColorValueChanged = defined @Prat-3.0/modules/Font.lua:698
OnSubValueChanged = defined @Prat-3.0/modules/Font.lua:698
oldsize = {
}
RawHookScript = defined @AdiBags/libs/AceHook-3.0/AceHook-3.0.lua:394
FCF_OpenTemporaryWindow = defined @Prat-3.0/modules/Font.lua:777
FCF_SetChatWindowFontSize = defined @Prat-3.0/modules/Font.lua:759
SecureHook = defined @AdiBags/libs/AceHook-3.0/AceHook-3.0.lua:335
SetFont = defined @Prat-3.0/modules/Font.lua:726
GetName = defined @AdiBags/libs/AceAddon-3.0/AceAddon-3.0.lua:275
defaultModuleState = true
UnregisterAllEvents = defined @AdiBags/libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:164
UnregisterMessage = defined @AdiBags/libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:143
name = "Prat_Font"
ConfigureAllChatFrames = defined @Prat-3.0/modules/Font.lua:698
IsEnabled = defined @AdiBags/libs/AceAddon-3.0/AceAddon-3.0.lua:447
orderedModules = {
}
OnModuleEnable = defined @Prat-3.0/modules/Font.lua:621
DisableModule = defined @AdiBags/libs/AceAddon-3.0/AceAddon-3.0.lua:346
GetSubValue = defined @Prat-3.0/modules/Font.lua:680
OnModuleDisable = defined @Prat-3.0/modules/Font.lua:670
PLAYER_ENTERING_WORLD = defined @Prat-3.0/modules/Font.lua:665
Prat_FramesUpdated = defined @Prat-3.0/modules/Font.lua:660
RegisterMessage = defined @AdiBags/libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:80
HookScript = defined @AdiBags/libs/AceHook-3.0/AceHook-3.0.lua:365
SharedMedia_Registered = defined @Prat-3.0/modules/Font.lua:652
GetDescription = defined @Prat-3.0/modules/Font.lua:648
IsHooked = defined @AdiBags/libs/AceHook-3.0/AceHook-3.0.lua:492
SetSubValue = defined @Prat-3.0/modules/Font.lua:684
PL = {
}
IsModule = defined @AdiBags/libs/AceAddon-3.0/AceAddon-3.0.lua:213
GetShadowClr = defined @Prat-3.0/modules/Font.lua:746
SetDefaultModuleState = defined @AdiBags/libs/AceAddon-3.0/AceAddon-3.0.lua:383
SetFontMode = defined @Prat-3.0/modules/Font.lua:734
SendMessage = defined @AdiBags/libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:49
SetEnabledState = defined @AdiBags/libs/AceAddon-3.0/AceAddon-3.0.lua:420
Hook = defined @AdiBags/libs/AceHook-3.0/AceHook-3.0.lua:273
enabledState = true
SetFontSize = defined @Prat-3.0/modules/Font.lua:721
Registe

To Reproduce
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1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
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Version Information (please complete the following information):

• Wow Version: (current Retail or Classic) /dump GetBuildInfo()
• Prat Version: You get this when you log in, or anytime /dump Prat.Version

Addons you are running
If possible list which addons you were using when the bug occurred.

Do you know what you were doing when the error appeared?

i don't know when it happend..T.T