What steps will reproduce the problem?
1. Log off
2.
3.

What is the expected output? What do you see instead?

What version of the product are you using?
0.9.0Beta

Do you have an error log of what happened?
As caught by BugGrabber after log off, English client

"FlightHUD-0.9.0\\FlightHUD.lua:1283 bad argument #1 to 'pairs' (table expected, got nil)\nFlightHUD-0.9.0\\FlightHUD.lua:1283 in function `?'\nFlightHUD-0.9.0\\FlightHUD.lua:890 in function <Interface\\AddOns\\FlightHUD\\FlightHUD.lua:890\n\nLocals:|r\nself = <table> {\n SetDefaultModuleLibraries = <function> defined @Interface\\AddOns\\Ace3\\AceAddon-3.0\\AceAddon-3.0.lua:381\n LastSwimming = false\n RemoveQuestHelperCallback = <function> defined @Interface\\AddOns\\FlightHUD\\FlightHUD.lua:1502\n mapicon_OnEnter = <function> defined @Interface\\AddOns\\FlightHUD\\FlightHUD.lua:1410\n ToggleHUD = <function> defined @Interface\\AddOns\\FlightHUD\\FlightHUD.lua:1373\n baseName = \"FlightHUD\"\n ResetAll = <function> defined @Interface\\AddOns\\FlightHUD\\FlightHUD.lua:953\n RemoveAllWaypoints = <function> defined @Interface\\AddOns\\FlightHUD\\FlightHUD.lua:1486\n CompassHeadingImage2 = <unnamed> {\n }\n enabled = true\n MODIFIER_STATE_CHANGED = <function> defined @Interface\\AddOns\\FlightHUD\\FlightHUD.lua", -- [1]
                "906\n OnShow = <function> defined @Interface\\AddOns\\FlightHUD\\FlightHUD.lua:1387\n OnDragStop = <function> defined @Interface\\AddOns\\FlightHUD\\FlightHUD.lua:925\n SetDefaultModulePrototype = <function> defined @Interface\\AddOns\\Ace3\\AceAddon-3.0\\AceAddon-3.0.lua:423\n ShowCompassImage = false\n defaultModuleState = true\n IsEnabled = <function> defined @Interface\\AddOns\\Ace3\\AceAddon-3.0\\AceAddon-3.0.lua:465\n UNIT_EXITED_VEHICLE = <function> defined @Interface\\AddOns\\FlightHUD\\FlightHUD.lua:1262\n DisableModule = <function> defined @Interface\\AddOns\\Ace3\\AceAddon-3.0\\AceAddon-3.0.lua:364\n mounted = false\n WORLD_MAP_UPDATE = <function> defined @Interface\\AddOns\\FlightHUD\\FlightHUD.lua:1421\n HeadingText = <unnamed> {\n }\n RegisterMessage = <function> defined @Interface\\AddOns\\Ace3\\CallbackHandler-1.0\\CallbackHandler-1.0.lua:118\n UnregisterMessage = <function> defined @Interface\\AddOns\\Ace3\\CallbackHandler-1.0\\CallbackHandler-1.0.lua:181\n ShowPitchImage = false\n flying = false", -- [2]
                "\n db = <table> {\n }\n UNIT_AURA = <function> defined @Interface\\AddOns\\FlightHUD\\FlightHUD.lua:1290\n EventCheck = <function> defined @Interface\\AddOns\\FlightHUD\\FlightHUD.lua:1320\n SetEnabledState = <function> defined @Interface\\AddOns\\Ace3\\AceAddon-3.0\\AceAddon-3.0.lua:438\n SetupQuestHelperCallback = <function> defined @Interface\\AddOns\\FlightHUD\\FlightHUD.lua:1496\n enabledState = true\n ZONE_CHANGED_NEW_AREA = <function> defined @Interface\\AddOns\\FlightHUD\\FlightHUD.lua:1395\n RegisterEvent = <function> defined @Interface\\AddOns\\Ace3\\CallbackHandler-1.0\\CallbackHandler-1.0.lua:118\n IsShowing = false\n IterateModules = <function> defined @Interface\\AddOns\\Ace3\\AceAddon-3.0\\AceAddon-3.0.lua:451\n waypoints = <table> {\n }\n PLAYER_LOGOUT = <function> defined @Interface\\AddOns\\FlightHUD\\FlightHUD.lua:1282\n OnInitialize = <function> defined @Interface\\AddOns\\FlightHUD\\FlightHUD.lua:371\n NewModule = <function> defined @Interface\\AddOns\\Ace3\\AceAddon-3.0\\AceAddon-3.0.lua:255\n ", -- [3]
                "GetModule = <function> defined @Interface\\AddOns\\Ace3\\AceAddon-3.0\\AceAddon-3.0.lua:230\n mapicon_OnClick = <function> defined @Interface\\AddOns\\FlightHUD\\FlightHUD.lua:1405\n defaultModuleLibraries = <table> {\n }\n OnUpdate = <function> defined @Interface\\AddOns\\FlightHUD\\FlightHUD.lua:991\n UnregisterChatCommand = <function> defined @Interface\\AddOns\\Ace3\\AceConsole-3.0\\AceConsole-3.0.lua:111\n PitchText = <unnamed> {\n }\n EditFrame = <unnamed> {\n }\n EnableModule = <function> defined @Interface\\AddOns\\Ace3\\AceAddon-3.0\\AceAddon-3.0.lua:346\n timage = <unnamed> {\n }\n GetName = <function> defined @Interface\\AddOns\\Ace3\\AceAddon-3.0\\AceAddon-3.0.lua:298\n swimming = false\n AddQHWaypoint = <function> defined @Interface\\AddOns\\FlightHUD\\FlightHUD.lua:1437\n DummyFrame = FlightHUDDummyFrame {\n }\n name = \"FlightHUD\"\n waypointframes = <table> {\n }\n SpeedText = <unnamed> {\n }\n PitchImage = <unnamed> {\n }\n Disable = <function> defined @Interface\\AddOns\\Ace3\\AceAddon-3.0\\AceAddon-3.0", -- [4]
                ".lua:328\n mapicon_OnLeave = <function> defined @Interface\\AddOns\\FlightHUD\\FlightHUD.lua:1417\n FlightHUDFrame = FlightHUDFrame {\n }\n CompassHeadingImage1 = <unnamed> {\n }\n CoordinatesText = <unnamed> {\n }\n optionsFrames = <table> {\n }\n GetFrom = \"player\"\n Print = <function> defined @Interface\\AddOns\\Ace3\\AceConsole-3.0\\AceConsole-3.0.lua:54\n ShowCompassGraphic = false\n vars = <table> {\n }\n Enable = <function> defined \n  ---", -- [5]

Please provide any additional information below.