Unable to start Jellyfin Server, Errors

[RedrcknRbn]

Whenever starting up my Jellyfin Server on my Windows 10 pc (installed via Windows Installer), it errors, giving the following log:

Code:

[2025-02-23 13:05:18.912 -06:00] [INF] [1] Main: Jellyfin version: "10.10.3"
[2025-02-23 13:05:18.922 -06:00] [INF] [1] Main: Environment Variables: ["[JELLYFIN_LOG_DIR, C:\ProgramData\Jellyfin\Server\log]"]
[2025-02-23 13:05:18.925 -06:00] [INF] [1] Main: Arguments: ["C:\Program Files\Jellyfin\Server\jellyfin.dll", "--datadir", "C:\ProgramData\Jellyfin\Server"]
[2025-02-23 13:05:18.927 -06:00] [INF] [1] Main: Operating system: "Microsoft Windows 10.0.19045"
[2025-02-23 13:05:18.928 -06:00] [INF] [1] Main: Architecture: X64
[2025-02-23 13:05:18.929 -06:00] [INF] [1] Main: 64-Bit Process: True
[2025-02-23 13:05:18.930 -06:00] [INF] [1] Main: User Interactive: True
[2025-02-23 13:05:18.931 -06:00] [INF] [1] Main: Processor count: 24
[2025-02-23 13:05:18.932 -06:00] [INF] [1] Main: Program data path: "C:\ProgramData\Jellyfin\Server"
[2025-02-23 13:05:18.932 -06:00] [INF] [1] Main: Log directory path: "C:\ProgramData\Jellyfin\Server\log"
[2025-02-23 13:05:18.933 -06:00] [INF] [1] Main: Config directory path: "C:\ProgramData\Jellyfin\Server\config"
[2025-02-23 13:05:18.934 -06:00] [INF] [1] Main: Cache path: "C:\ProgramData\Jellyfin\Server\cache"
[2025-02-23 13:05:18.935 -06:00] [INF] [1] Main: Temp directory path: "C:\Users\redd\AppData\Local\Temp\jellyfin"
[2025-02-23 13:05:18.936 -06:00] [INF] [1] Main: Web resources path: "C:\Program Files\Jellyfin\Server\jellyfin-web"
[2025-02-23 13:05:18.937 -06:00] [INF] [1] Main: Application directory: "C:\Program Files\Jellyfin\Server\"
[2025-02-23 13:05:19.016 -06:00] [FTL] [1] Main: Unhandled Exception
System.InvalidOperationException: There is an error in XML document (1, 1).
---> System.Xml.XmlException: '.', hexadecimal value 0x00, is an invalid character. Line 1, position 1.
  at System.Xml.XmlTextReaderImpl.Throw(Exception e)
  at System.Xml.XmlTextReaderImpl.Throw(String res, String[] args)
  at System.Xml.XmlTextReaderImpl.ParseRootLevelWhitespace()
  at System.Xml.XmlTextReaderImpl.ParseDocumentContent()
  at System.Xml.XmlReader.MoveToContent()
  at Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationReaderMigrationOptions.Read4_MigrationOptions()
  at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
  at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
  --- End of inner exception stack trace ---
  at System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader xmlReader, String encodingStyle, XmlDeserializationEvents events)
  at System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader xmlReader)
  at Emby.Server.Implementations.Serialization.MyXmlSerializer.DeserializeFromStream(Type type, Stream stream)
  at Emby.Server.Implementations.Serialization.MyXmlSerializer.DeserializeFromFile(Type type, String file)
  at Jellyfin.Server.Migrations.MigrationRunner.RunPreStartup(ServerApplicationPaths appPaths, ILoggerFactory loggerFactory)
  at Jellyfin.Server.Program.StartApp(StartupOptions options)
  at Jellyfin.Server.Program.<Main>(String[] args)
[2025-02-23 13:05:40.398 -06:00] [INF] [1] Main: Jellyfin version: "10.10.3"
[2025-02-23 13:05:40.408 -06:00] [INF] [1] Main: Environment Variables: ["[JELLYFIN_LOG_DIR, C:\ProgramData\Jellyfin\Server\log]"]
[2025-02-23 13:05:40.410 -06:00] [INF] [1] Main: Arguments: ["C:\Program Files\Jellyfin\Server\jellyfin.dll", "--datadir", "C:\ProgramData\Jellyfin\Server"]
[2025-02-23 13:05:40.412 -06:00] [INF] [1] Main: Operating system: "Microsoft Windows 10.0.19045"
[2025-02-23 13:05:40.413 -06:00] [INF] [1] Main: Architecture: X64
[2025-02-23 13:05:40.414 -06:00] [INF] [1] Main: 64-Bit Process: True
[2025-02-23 13:05:40.415 -06:00] [INF] [1] Main: User Interactive: True
[2025-02-23 13:05:40.416 -06:00] [INF] [1] Main: Processor count: 24
[2025-02-23 13:05:40.417 -06:00] [INF] [1] Main: Program data path: "C:\ProgramData\Jellyfin\Server"
[2025-02-23 13:05:40.418 -06:00] [INF] [1] Main: Log directory path: "C:\ProgramData\Jellyfin\Server\log"
[2025-02-23 13:05:40.419 -06:00] [INF] [1] Main: Config directory path: "C:\ProgramData\Jellyfin\Server\config"
[2025-02-23 13:05:40.420 -06:00] [INF] [1] Main: Cache path: "C:\ProgramData\Jellyfin\Server\cache"
[2025-02-23 13:05:40.421 -06:00] [INF] [1] Main: Temp directory path: "C:\Users\redd\AppData\Local\Temp\jellyfin"
[2025-02-23 13:05:40.421 -06:00] [INF] [1] Main: Web resources path: "C:\Program Files\Jellyfin\Server\jellyfin-web"
[2025-02-23 13:05:40.422 -06:00] [INF] [1] Main: Application directory: "C:\Program Files\Jellyfin\Server\"
[2025-02-23 13:05:40.439 -06:00] [FTL] [1] Main: Unhandled Exception
System.InvalidOperationException: There is an error in XML document (1, 1).
---> System.Xml.XmlException: '.', hexadecimal value 0x00, is an invalid character. Line 1, position 1.
  at System.Xml.XmlTextReaderImpl.Throw(Exception e)
  at System.Xml.XmlTextReaderImpl.Throw(String res, String[] args)
  at System.Xml.XmlTextReaderImpl.ParseRootLevelWhitespace()
  at System.Xml.XmlTextReaderImpl.ParseDocumentContent()
  at System.Xml.XmlReader.MoveToContent()
  at Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationReaderMigrationOptions.Read4_MigrationOptions()
  at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
  at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
  --- End of inner exception stack trace ---
  at System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader xmlReader, String encodingStyle, XmlDeserializationEvents events)
  at System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader xmlReader)
  at Emby.Server.Implementations.Serialization.MyXmlSerializer.DeserializeFromStream(Type type, Stream stream)
  at Emby.Server.Implementations.Serialization.MyXmlSerializer.DeserializeFromFile(Type type, String file)
  at Jellyfin.Server.Migrations.MigrationRunner.RunPreStartup(ServerApplicationPaths appPaths, ILoggerFactory loggerFactory)
  at Jellyfin.Server.Program.StartApp(StartupOptions options)
  at Jellyfin.Server.Program.<Main>(String[] args)
[2025-02-23 13:08:59.327 -06:00] [INF] [1] Main: Jellyfin version: "10.10.3"
[2025-02-23 13:08:59.337 -06:00] [INF] [1] Main: Environment Variables: ["[JELLYFIN_LOG_DIR, C:\ProgramData\Jellyfin\Server\log]"]
[2025-02-23 13:08:59.339 -06:00] [INF] [1] Main: Arguments: ["C:\Program Files\Jellyfin\Server\jellyfin.dll", "--datadir", "C:\ProgramData\Jellyfin\Server"]
[2025-02-23 13:08:59.341 -06:00] [INF] [1] Main: Operating system: "Microsoft Windows 10.0.19045"
[2025-02-23 13:08:59.342 -06:00] [INF] [1] Main: Architecture: X64
[2025-02-23 13:08:59.343 -06:00] [INF] [1] Main: 64-Bit Process: True
[2025-02-23 13:08:59.344 -06:00] [INF] [1] Main: User Interactive: True
[2025-02-23 13:08:59.345 -06:00] [INF] [1] Main: Processor count: 24
[2025-02-23 13:08:59.346 -06:00] [INF] [1] Main: Program data path: "C:\ProgramData\Jellyfin\Server"
[2025-02-23 13:08:59.347 -06:00] [INF] [1] Main: Log directory path: "C:\ProgramData\Jellyfin\Server\log"
[2025-02-23 13:08:59.348 -06:00] [INF] [1] Main: Config directory path: "C:\ProgramData\Jellyfin\Server\config"
[2025-02-23 13:08:59.349 -06:00] [INF] [1] Main: Cache path: "C:\ProgramData\Jellyfin\Server\cache"
[2025-02-23 13:08:59.350 -06:00] [INF] [1] Main: Temp directory path: "C:\Users\redd\AppData\Local\Temp\jellyfin"
[2025-02-23 13:08:59.351 -06:00] [INF] [1] Main: Web resources path: "C:\Program Files\Jellyfin\Server\jellyfin-web"
[2025-02-23 13:08:59.352 -06:00] [INF] [1] Main: Application directory: "C:\Program Files\Jellyfin\Server\"
[2025-02-23 13:08:59.370 -06:00] [FTL] [1] Main: Unhandled Exception
System.InvalidOperationException: There is an error in XML document (1, 1).
---> System.Xml.XmlException: '.', hexadecimal value 0x00, is an invalid character. Line 1, position 1.
  at System.Xml.XmlTextReaderImpl.Throw(Exception e)
  at System.Xml.XmlTextReaderImpl.Throw(String res, String[] args)
  at System.Xml.XmlTextReaderImpl.ParseRootLevelWhitespace()
  at System.Xml.XmlTextReaderImpl.ParseDocumentContent()
  at System.Xml.XmlReader.MoveToContent()
  at Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationReaderMigrationOptions.Read4_MigrationOptions()
  at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
  at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
  --- End of inner exception stack trace ---
  at System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader xmlReader, String encodingStyle, XmlDeserializationEvents events)
  at System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader xmlReader)
  at Emby.Server.Implementations.Serialization.MyXmlSerializer.DeserializeFromStream(Type type, Stream stream)
  at Emby.Server.Implementations.Serialization.MyXmlSerializer.DeserializeFromFile(Type type, String file)
  at Jellyfin.Server.Migrations.MigrationRunner.RunPreStartup(ServerApplicationPaths appPaths, ILoggerFactory loggerFactory)
  at Jellyfin.Server.Program.StartApp(StartupOptions options)
  at Jellyfin.Server.Program.<Main>(String[] args)

[ThomasPGH]

System.InvalidOperationException: There is an error in XML document (1, 1).
---> System.Xml.XmlException: '.', hexadecimal value 0x00, is an invalid character. Line 1, position 1.

Open the xml files in C:\ProgramData\Jellyfin\Server\config with Notepad++, one by one. One of them has a NUL character on line 1, position 1. These files should be encoded in UTF-8 without BOM.