Getting error "Message: ..\AddOns\Mapster\FogClear.lua line 103: attempt to index upvalue 'FogData' (a nil value)" on latest update for Classic WoW.

Debug:
Mapster\FogClear.lua:103:
Mapster\FogClear.lua:99
(tail call): ?
[C]: RefreshOverlays()
...haredMapDataProviders\MapExplorationDataProvider.lua:163: ?()
...ace\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua:510: CallMethodOnPinsAndDataProviders()
...ace\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua:542: OnCanvasScaleChanged()
...lizzard_MapCanvas\MapCanvas_ScrollContainerMixin.lua:634: InstantPanAndZoom()
...lizzard_MapCanvas\MapCanvas_ScrollContainerMixin.lua:614: ResetZoom()
...lizzard_MapCanvas\MapCanvas_ScrollContainerMixin.lua:423: OnCanvasSizeChanged()
...lizzard_MapCanvas\MapCanvas_ScrollContainerMixin.lua:407: SetMapID()
...ace\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua:33: SetMapID()
...rface\AddOns\Blizzard_WorldMap\Blizzard_WorldMap.lua:138:
...rface\AddOns\Blizzard_WorldMap\Blizzard_WorldMap.lua:136
[C]: ?
...face\AddOns\Mapster\Libs\AceHook-3.0\AceHook-3.0.lua:95:
...face\AddOns\Mapster\Libs\AceHook-3.0\AceHook-3.0.lua:87
[C]: Show()
Mapster\Mapster.lua:111:
Mapster\Mapster.lua:111
(tail call): ?
...rface\AddOns\Blizzard_WorldMap\Blizzard_WorldMap.lua:174: ToggleWorldMap()
[string "TOGGLEWORLDMAP"]:1:
[string "TOGGLEWORLDMAP"]:1