Hello Khadim,
That same WIKI page (that you have mentioned) addresses that issue.
It states that this occurs if you have more than one JCO/JRA registring the program.
I am not a Java expert, but what I understand from that WIKI is that you should not use a JCO-RFC Destination, but the "inboundRA" (RA -> Resource Adapter).
Regards,
Isaías