Getting error: Opsec error. rc=-1 err=-96 Connection error step 4 on the user guide page 706

anyone run into issues pulling certs or suggestions? I can telnet using the port no issues, but not able to pull certs. steps prior were all completed.

Our company had nxlog enterprise license , but we only paid for one year, Can we use nxlog with this old version when the license is expired.? many thanks!