ロードできない

[" 初心者 "]

コントリビューション"{D1A12C2E-B387-429B-C477-FA333A8A7FD2}-1-0:0"を含むプラグインが見つかりません
   at freetrain.framework.plugin.ReferenceImpl.GetRealObject(StreamingContext context) in C:\Project\FreeTrain\Patch\FreeTrain\core\framework\plugin\Contribution.cs:line 138
   at System.Runtime.Serialization.ObjectManager.ResolveObjectReference(ObjectHolder holder)
   at System.Runtime.Serialization.ObjectManager.DoFixups()
   at System.Runtime.Serialization.Formatters.Binary.ObjectReader.Deserialize(HeaderHandler handler, __BinaryParser serParser, Boolean fCheck, IMethodCallMessage methodCallMessage)
   at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(Stream serializationStream, HeaderHandler handler, Boolean fCheck, IMethodCallMessage methodCallMessage)
   at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(Stream serializationStream)
   at freetrain.world.World.load(IFormatter f, Stream stream) in C:\Project\FreeTrain\Patch\FreeTrain\core\world\World.cs:line 519
   at freetrain.framework.MainWindow.loadGame(IFormatter f, Stream stream) in C:\Project\FreeTrain\Patch\FreeTrain\core\framework\MainWindow.cs:line 1238

こういうエラーメッセージが出てゲームがロードできませんどうすればいいか教えてください
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