When I was working in IWAY. I copied a folder from different server after which I could not find the Dataflow and Processflow. Only Focal code in Text view is visible. Even my previous dataflow and processflow are not visible. Even if I left click in Application option of FLOW doen not come. Can any one help me in it, how to bring the flow back.

It sounds like your new server is not configured as a DataMigrator server. The server must have a liscense key for DataMigrator to edit flows from the Data Management Console.