Error in 'Online Maps Buildings' script

Hi

I am getting following error if I drag the map for few seconds when 'Online Maps Buildings' script is added to the map.

KeyNotFoundException: The given key was not present in the dictionary.
System.Collections.Generic.Dictionary`2[System.String,OnlineMapsOSMWay].get_Item (System.String key) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Collections.Generic/Dictionary.cs:150)
OnlineMapsBuildings.MoveRelationToWay (.OnlineMapsOSMRelation relation, System.Collections.Generic.Dictionary`2 ways, System.Collections.Generic.List`1 waysInRelation, System.Collections.Generic.Dictionary`2 nodes) (at Assets/Infinity Code/Online maps/Scripts/Plugins/Buildings/OnlineMapsBuildings.cs:270)
OnlineMapsBuildings.MoveRelationsToWays (System.Collections.Generic.List`1 relations, System.Collections.Generic.Dictionary`2 ways, System.Collections.Generic.Dictionary`2 nodes) (at Assets/Infinity Code/Online maps/Scripts/Plugins/Buildings/OnlineMapsBuildings.cs:322)
OnlineMapsBuildings+<OnBuildingRequestComplete>c__AnonStorey0.<>m__0 () (at Assets/Infinity Code/Online maps/Scripts/Plugins/Buildings/OnlineMapsBuildings.cs:353)
OnlineMapsBuildings.OnBuildingRequestComplete (System.String response) (at Assets/Infinity Code/Online maps/Scripts/Plugins/Buildings/OnlineMapsBuildings.cs:361)
OnlineMapsTextWebService.OnRequestComplete (.OnlineMapsWWW www) (at Assets/Infinity Code/Online maps/Scripts/WebServices/Base/OnlineMapsTextWebService.cs:56)
OnlineMapsWWW.Finish () (at Assets/Infinity Code/Online maps/Scripts/ExtraTypes/OnlineMapsWWW.cs:195)
OnlineMapsWWW+<WaitResponse>c__Iterator0.MoveNext () (at Assets/Infinity Code/Online maps/Scripts/ExtraTypes/OnlineMapsWWW.cs:307)
UnityEngine.SetupCoroutine.InvokeMoveNext (IEnumerator enumerator, IntPtr returnValueAddress) (at /Users/builduser/buildslave/unity/build/Runtime/Export/Coroutines.cs:17)

Thanks.