Game Crash When Saving or Autosaving

[TheMasterBuilder]

Sometimes but not always the game crashes when autosaving or when Manual Saving. Then my computer restarts. Rimworld gives me this crash log:

(It also says: Exception loading file at C:/Users/mille/AppData/Local Low/Ludeon Studios/RimWorld by Ludeon Studios\ Config\ Knowledge.ml. Loading defaults instead. Exception was: System. Xml.Xl Exception: Root element is missing. )







Full text or error Log.
RimWorld 1.4.3682 rev789
UnityEngine.StackTraceUtility:ExtractStackTrace ()
Verse.Log:Message (string)
RimWorld.VersionControl:LogVersionNumber ()
Verse.Root:CheckGlobalInit ()
Verse.Root:Start ()
Verse.Root_Entry:Start ()

Exception loading file at C:/Users/mille/AppData/LocalLow/Ludeon Studios/RimWorld by Ludeon Studios\Config\Knowledge.xml. Loading defaults instead. Exception was: System.Xml.XmlException: Root element is missing.
at System.Xml.XmlTextReaderImpl.Throw (System.Exception e) [0x00027] in <0f9699188f0c414ea6fb5557f5c16d15>:0
at System.Xml.XmlTextReaderImpl.ThrowWithoutLineInfo (System.String res) [0x00017] in <0f9699188f0c414ea6fb5557f5c16d15>:0
at System.Xml.XmlTextReaderImpl.ParseDocumentContent () [0x0035d] in <0f9699188f0c414ea6fb5557f5c16d15>:0
at System.Xml.XmlTextReaderImpl.Read () [0x0008c] in <0f9699188f0c414ea6fb5557f5c16d15>:0
at System.Xml.XmlLoader.Load (System.Xml.XmlDocument doc, System.Xml.XmlReader reader, System.Boolean preserveWhitespace) [0x000a6] in <0f9699188f0c414ea6fb5557f5c16d15>:0
at System.Xml.XmlDocument.Load (System.Xml.XmlReader reader) [0x0002e] in <0f9699188f0c414ea6fb5557f5c16d15>:0
at System.Xml.XmlDocument.LoadXml (System.String xml) [0x00018] in <0f9699188f0c414ea6fb5557f5c16d15>:0
at Verse.DirectXmlLoader.ItemFromXmlString[T] (System.String xmlContent, System.String filePath, System.Boolean resolveCrossRefs) [0x0001a] in <3cca3e6203e64b109fd8ce21f7120d03>:0
UnityEngine.StackTraceUtility:ExtractStackTrace ()
Verse.Log:Error (string)
Verse.DirectXmlLoader:ItemFromXmlString<RimWorld.PlayerKnowledgeDatabase/ConceptKnowledge> (string,string,bool)
Verse.DirectXmlLoader:ItemFromXmlFile<RimWorld.PlayerKnowledgeDatabase/ConceptKnowledge> (string,bool)
RimWorld.PlayerKnowledgeDatabase:ReloadAndRebind ()
RimWorld.PlayerKnowledgeDatabase:.cctor ()
Verse.PlayDataLoader:DoPlayLoad ()
Verse.PlayDataLoader:LoadAllPlayData (bool)
Verse.Root/<>c:<Start>b__6_1 ()
Verse.LongEventHandler:RunEventFromAnotherThread (System.Action)
Verse.LongEventHandler/<>c:<UpdateCurrentAsynchronousEvent>b__27_0 ()
System.Threading.ThreadHelper:ThreadStart_Context (object)
System.Threading.ExecutionContext:RunInternal (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool)
System.Threading.ExecutionContext:Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool)
System.Threading.ExecutionContext:Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object)
System.Threading.ThreadHelper:ThreadStart ()