Network Adapter could not establish the connection on jboss-fuse-6/fis-karaf-openshift

I'm getting this error while I'm starting this app, where is possible to determinate which is the root cause of :

2018-12-04 13:51:48,629 | ERROR | RetryTimer | Recovery | 32 - org.apache.aries.transaction.jdbc - 2.1.2 | Failed to create ConnectionAndWrapperNamedXAResource, IO Error: The Network Adapter could not establish the connection
javax.transaction.SystemException: Failed to create ConnectionAndWrapperNamedXAResource, IO Error: The Network Adapter could not establish the connection

No environment variable or configmap is setted for this deployment config.

Thanks in advance.
Giorgio