Hi Priya,
Checking the server logs and write permissions on the replicate/inbound folder should be the first point of investigation.
I see you are using the publishing and subscribing for package deployment (correct me if I am wrong).
If yes and if you are completely blocked now you can also deploy the packages on target IS using WmDeployer.
or
If you have less number of packages (<5) to be deployed try doing it manually.
Let me know your updates on this.
#webMethods#Integration-Server-and-ESB