XBMC:
12:04:39 T:2784   ERROR: PVR - PVR::CPVRClient::AddTimer - addon 'ServerWMC:connected' returned an error: server error
12:04:39 T:2784   ERROR: PVR - PVR::CPVRClients::AddTimer - cannot add timer to client '1': server error

WMCServer:
2014/03/10 12:04:31.007	Received client request: Mike|SetTimer|-1|899354|0|1394485479|0|C81.7/81.15|50|0|0|0|-1|0
2014/03/10 12:04:31.009	AddTimer> -----------------start------------------------
2014/03/10 12:04:31.009	AddTimer> Recording Prefs: Pre: 00:00:00, Post: 00:00:00, Channel: null,  AnyChannel: True, Anytime: False, IsRecurring: False, KeepLength: NotSet
2014/03/10 12:04:31.009	AddTimer> Padding source: wmc
2014/03/10 12:04:31.010	AddTimer> Invalid manual recording duration
Parameter name: duration
Actual value was 16139.21:04:39.
2014/03/10 12:04:31.010	Finished request SetTimer in 0.00s