Fabric child containers are not getting started

Issue

• Fabric child containers are not getting started

JBossA-MQ:admin@root_2> fabric:container-start -f xxx
The list of container names: [xxx]
Error executing command: Instance already started

• logs :

2017-05-19 18:26:09,912 | ERROR | MCF-1-thread-1   | fabric-core                      | 82 - io.fabric8.fabric-core - 1.2.0.redhat-630187 | [io.fabric8.profile.urlhandler(33)] Failed creating the component instance; see log for reason
2017-05-19 18:26:09,913 | ERROR | lixDispatchQueue | fabric-configadmin               | 85 - io.fabric8.fabric-configadmin - 1.2.0.redhat-630187 | FrameworkEvent ERROR - io.fabric8.fabric-configadmin
java.lang.NoClassDefFoundError: x/y/introscope/agent/trace/IIntelligentInstrumentationMethodTracer
        at java.lang.Class.getDeclaredMethods0(Native Method)[:1.8.0_92]