Maybe it would be better to change the title to a real question and move your post to the right product section.
That way you probably won't get a helpful hint.
Looks like the Control-M Server lost contact with the agent sometime during the job's execution. Several things could cause this including the application server getting rebooted, or resource usage was too high for the agent to respond, etc.
For more analysis:
- Search Control-M Support Central with "Control-M disappeared" to find relevant cases/info.
- Search Control-M community with "disappeared" to find relevant community posts.
- The agent's log files may have information about why the agent lost touch with the Control-M Server.
Hope this helps.