Exception in static gboolean Application::on_timer(void*): Failed to lock to channel

Me TV-Message: 15.01.2008 15:28:30 - Loading EPG from '/home/cpa/.me-tv/epg.xml'
Me TV-Message: 15.01.2008 15:28:30 - EPG file loaded
Me TV-Message: 15.01.2008 15:28:31 - Channel file loaded
Me TV-Message: 15.01.2008 15:28:31 - Using 'xine' engine
Me TV-Message: 15.01.2008 15:28:32 - Unmuting audio
Me TV-Message: 15.01.2008 15:28:33 - Request to change channel to 'TF1'
Me TV-Message: 15.01.2008 15:28:33 - Changing channel to 'TF1'
Me TV-Message: 15.01.2008 15:28:33 - Purging remaining EPG events
Me TV-Message: 15.01.2008 15:28:33 - EPG events purged
Me TV-Message: 15.01.2008 15:28:33 - Closing xine stream
Me TV-Message: 15.01.2008 15:28:33 - Tuning to transponder at 498167000 ...
Me TV-Message: 15.01.2008 15:28:33 - Waiting for signal lock ...
Me TV-Message: 15.01.2008 15:28:43 - Exception in static gboolean Application::on_timer(void*): Failed to lock to channel
Me TV-Message: 15.01.2008 15:28:50 - Sending fake key event
Me TV-Message: 15.01.2008 15:29:51 - Sending fake key event
Me TV-Message: 15.01.2008 15:30:02 - Saving EPG data
Me TV-Message: 15.01.2008 15:30:02 - Updating EPG UI
Me TV-Message: 15.01.2008 15:30:52 - Sending fake key event
Me TV-Message: 15.01.2008 15:31:02 - Saving EPG data
Me TV-Message: 15.01.2008 15:31:02 - Updating EPG UI