what is this error mean?

[pr3dict 33]

I just noticed this in my log when I was trying to find out why my shield is direct streaming everything instead of direct playing it...

2020-02-05 19:28:54.376 Info HttpServer: HTTP POST http://192.168.10.89:8096/emby/Users/AuthenticateByName?format=json. UserAgent: Dalvik/2.1.0 (Linux; U; Android 9; SHIELD Android TV Build/PPR1.180610.011)
2020-02-05 19:28:54.391 Error UserManager: Error authenticating with provider Default
	*** Error Report ***
	Version: 4.3.1.0
	Command line: /opt/emby-server/system/EmbyServer.dll -programdata /var/lib/emby -ffdetect /opt/emby-server/bin/ffdetect -ffmpeg /opt/emby-server/bin/ffmpeg -ffprobe /opt/emby-server/bin/ffprobe -restartexitcode 3 -updatepackage emby-server-deb_{version}_amd64.deb
	Operating system: Unix 4.19.0.5
	64-Bit OS: True
	64-Bit Process: True
	User Interactive: True
	Runtime: file:///opt/emby-server/system/System.Private.CoreLib.dll
	Processor count: 4
	Program data path: /var/lib/emby
	Application directory: /opt/emby-server/system
	System.Exception: System.Exception: Invalid username or password
	   at Emby.Server.Implementations.Library.DefaultAuthenticationProvider.Authenticate(String username, String password, User resolvedUser)
	   at Emby.Server.Implementations.Library.UserManager.AuthenticateWithProvider(IAuthenticationProvider provider, String username, String password, User resolvedUser, CancellationToken cancellationToken)
	Source: Emby.Server.Implementations
	TargetSite: System.Threading.Tasks.Task`1[MediaBrowser.Controller.Authentication.ProviderAuthenticationResult] Authenticate(System.String, System.String, MediaBrowser.Controller.Entities.User)

[Luke 37259]

Invalid username or password