OXALIS AS4 - failure in reception of messages from PEPPOL TESTBED

[Robcio35]

Hello,

I successfully installed Oxalis AS4 on my Linux server (Ubuntu) with Tomcat 9.

My server is under PEPPOL TESTBED.

The test of submitting messages is successful. The sending of messages works fine.

But the reception of message fails, with the following exception :
[network.oxalis.as4.inbound.As4FaultInHandler] [] handleFault for Exception
org.apache.cxf.binding.soap.SoapFault: A security error was encountered when verifying the message
...
Caused by: org.apache.xml.security.utils.resolver.ResourceResolverException: Could not find a resolver for URI cid:phase4-att-33cf97b9-0871-4300-b8f9-6055177762cf@cid and Base null
at org.apache.xml.security.utils.resolver.ResourceResolver.resolve(ResourceResolver.java:161)
at org.apache.jcp.xml.dsig.internal.dom.DOMURIDereferencer.dereference(DOMURIDereferencer.java:115)
... 56 common frames omitted

Can somebody help me in understanding the origin of this problem ?
What I have to take in account to make my OXALIS AS4 capable of receiving messages ?

Here is my oxalis.conf :
oxalis.keystore: {
path: oxalis-keystore.p12
password: "xxxx"
key: {
alias: "cert"
password: "xxxx"
}
}
oxalis.truststore.ap: {
path: oxalis-truststore.jks
password: "yyyy"
}
oxalis.path.inbound = /var/peppol/IN
oxalis.logging.config=logback.xml

I will really appreciate any advice or help.

R.

[Robcio35]

I finally found the origin of the problem. Another software (Domibus) was installed on the server and was disturbing the OXALIS AS4.
I just undeployed Domibus, and the issue was solved !