RFXCOM Binding Error Message

I regularly get a not in binding message on startup from the RFXCOM binding. Is there an easy way to see what this is coming from? The message I receive is:
2016-01-03 18:49:18.095 WARN o.o.b.r.internal.RFXComBinding[:171]- Provider is not in binding ‘org.openhab.binding.rfxcom.internal.RFXComGenericBindingProvider@12a7830’
and putting the RFXCOM binding into debug mode doesn’t give me any more information.

Plugging the transceiver into a windows machine gives me repeated
Packettype = UNDECODED RF Message UNDECODED LACROSSE:1A89001700

AND turning La Crosse off in default.cfg makes the error message go away.

I’m guessing this is from a nearby weather station, is there any way to get this information into openhab so I can use it?

Putting items like Number WSTemp { rfxcom="<19560496:Temperature" } in items gets rid of the error but gives empty items (19560496 is the decimal of 12a7830)

This value 12a7830 is not the sensorId that should be used.
Try to enable the rfxcom debug logging, in debug it will show all the messages received by openhab from rfxcom.
Check in the starting log information if the correct protocols are enabled.