Error on load

[Machine Maker]

My ksp install stops loading at the same spot every time. Here is the portion of the log where it stops loading.

LOG 11:09:06.236] PartLoader: Compiling Part 'Squad/Parts/Structural/strutCubicOcto/strutCubicOcto/OCTOServiceBay'
[EXC 11:09:06.250] ArgumentException: The requested value 'Payload' was not found.
	System.Enum.Parse (System.Type enumType, System.String value, Boolean ignoreCase)
	System.Enum.Parse (System.Type enumType, System.String value)
	ConfigNode.ParseEnum (System.Type enumType, System.String vectorString)
	ConfigNode.ReadValue (System.Type fieldType, System.String value)
	ConfigNode.ReadObject (System.Object obj, .ConfigNode node)
	ConfigNode.LoadObjectFromConfig (System.Object obj, .ConfigNode node, Int32 pass, Boolean removeAfterUse)
	PartLoader.ParsePart (.UrlConfig urlConfig, .ConfigNode node)
	PartLoader+<CompileParts>c__Iterator4A.MoveNext ()
[EXC 11:09:06.261] NullReferenceException: Object reference not set to an instance of an object
	PartLoader.GetDatabaseConfig (.Part p)
	PartLoader.GetDatabaseConfig (.Part p, System.String nodeName)
	DragCubeSystem.LoadDragCubes (.Part p)
	Part+<Start>c__Iterator25.MoveNext ()

Hope someone can help.

[linuxgurugamer]

You have a bad part.  Need more than that to figure it out, but, start with removing whatever you just installed and try again.

[Jammer-TD]

in some mods, if you update by replacing the top most folder and other items were under that folder,then what happens is stuff gets removed. so parts are missing.

I see this when mods get updated and other related mod stuff wasn't part of the update yet they were under the root updated mod folder which had been deleted,

 so to fix

get the older mods and install them leaving the updated stuff alone or find the copy of the old folder and compare what is within moving only the non-updated data files.

re-install all mods from scratch.(save a copy of the old folder for review)(thus building a new Gamedata folder)

also verify files thru steam for any bad files.

hope this helps

send log if not

Jammer