Fabric rejoin fails for one of the server in cluster

Issue

Unable to rejoin couple of nodes in cluster and observed below error logs:

12:45:49,338 | WARN  | MCF-1-thread-1   | DefaultPullPushPolicy            | 140 - io.fabric8.fabric-git - 1.2.0.redhat-621084 | Pull failed because of: org.eclipse.jgit.api.errors.InvalidRemoteException: Invalid remote: origin
12:45:50,271 | WARN  | erSender[myid=2] | QuorumCnxManager                 | 145 - io.fabric8.fabric-zookeeper - 1.2.0.redhat-621084 | Cannot open channel to 4 at election address HOST_NAME:PORT
java.net.ConnectException: Connection refused