Please change the IPTV source log level to data (5) and reproduce the crash again. You can find the setting in c:\ProgramData\Team MediaPortal\MediaPortal TV Server\MPIPTVSource.ini. Stop the TV service first. The file can then be opened with any text editor. Change "LogVerbosity = 3" to "LogVerbosity = 5", save, close. Finally, start the TV service again.