Failed to determine a receiver agreement AAE

Hi,

Yesterday a fully operational scenario using the AAE stopped working, nobody has made a change to it in the recent days.

We got this:

The communication channel throws the message: ""

Receiver Determination failed for message

com.sap.aii.adapter.jms.core.channel.filter.SendToModuleProcessorFilter.filter(SendToModuleProcessorFilter.java:95)

...""

I tested a payload in the RWB, and the error message is similar,

""Error While Sending Message: Additional error
text from response:
com.sap.engine.interfaces.messaging.api.exception.ConfigException:
ConfigException in XI protocol handler. Failed to determine a receiver agreement
for the given message. Root cause:
com.sap.aii.af.service.cpa.CPAObjectNotFoundException: Couldn't retrieve
outbound binding for the given P/S/A values""

I also tested the configuration  in the IB (just in case), and as a resutl there is a similar message  in the receiver agreement step.

So, I´ve recreated the Integrated Configuration (ICO),  checked that every tab is OK,  and reactivate it, I also did a Cache refresh,  the business system is on and operational (since we have others AAE scenarios working fine).

Any Help?

Thanks in advance.

Louis C