DLNA error at open on LG tv

I can see DLNA active (Jellyfin is DLNA server) on my LG tv, but when I try to open, I get a connection error.

Jellyfin log show this error, but I have no idea why…

“[2019-09-05 00:22:39.971 +02:00] [ERR] Error encoding image
System.UnauthorizedAccessException: Access to the path is denied. —> System.IO.IOException: Operation not permitted
— End of inner exception stack trace —
at Interop.ThrowExceptionForIoErrno(ErrorInfo errorInfo, String path, Boolean isDirectory, Func2 errorRewriter) at Interop.CheckIo(Int64 result, String path, Boolean isDirectory, Func2 errorRewriter)
at System.IO.FileSystem.CopyFile(String sourceFullPath, String destFullPath, Boolean overwrite)
at System.IO.File.Copy(String sourceFileName, String destFileName, Boolean overwrite)
at Jellyfin.Drawing.Skia.SkiaEncoder.NormalizePath(String path, IFileSystem fileSystem)
at Jellyfin.Drawing.Skia.SkiaEncoder.Decode(String path, Boolean forceCleanBitmap, IFileSystem fileSystem, Nullable1 orientation, SKEncodedOrigin& origin) at Jellyfin.Drawing.Skia.SkiaEncoder.GetBitmap(String path, Boolean cropWhitespace, Boolean forceAnalyzeBitmap, Nullable1 orientation, SKEncodedOrigin& origin)
at Jellyfin.Drawing.Skia.SkiaEncoder.GetBitmap(String path, Boolean cropWhitespace, Boolean autoOrient, Nullable1 orientation) at Jellyfin.Drawing.Skia.SkiaEncoder.EncodeImage(String inputPath, DateTime dateModified, String outputPath, Boolean autoOrient, Nullable1 orientation, Int32 quality, ImageProcessingOptions options, ImageFormat selectedOutputFormat)
at Emby.Drawing.ImageProcessor.ProcessImage(ImageProcessingOptions options)”

Can you help me? Thanks