Illegal characters in path when xdcc listing

[Khundian]

02-05-2014 18:52:00,634 FATAL [XXX.XXX.XXX.XXX:50226] 157:XG.Plugin.Irc.Download.StartWriting(S:\TEMP\irc.XXX.org.XDCC|011)
System.ArgumentException: Illegal characters in path.
at System.IO.Path.CheckInvalidPathChars(String path, Boolean checkAdditional)
at System.IO.Path.NormalizePath(String path, Boolean fullCheck, Int32 maxPathLength, Boolean expandShortPaths)
at System.IO.Path.GetFullPathInternal(String path)
at System.IO.FileInfo.Init(String fileName, Boolean checkHost)
at System.IO.FileInfo..ctor(String fileName)
at XG.Plugin.Irc.Download.StartWriting() in c:\XXX\XXX\XXX\xdcc-grabscher-master\XG.Plugin.Irc\Download.cs:line 142
02-05-2014 18:52:00,638 FATAL [XXX.XXX.XXX.XXX:50226] 114:XG.Plugin.Irc.Download.StartRun()
System.ArgumentException: Stream was not readable.
at System.IO.BinaryReader..ctor(Stream input, Encoding encoding, Boolean leaveOpen)
at XG.Plugin.Irc.Download.StartRun() in c:\XXX\XXX\XXX\xdcc-grabscher-master\XG.Plugin.Irc\Download.cs:line 72
02-05-2014 18:52:00,640 ERROR [XXX.XXX.XXX.XXX:50226] 204:XG.Plugin.Irc.Download.StopWriting(S:\TEMP\irc.XXX.org.XDCC|011) connection did not work