Problem " 8020 8027 8443 Ports are in use. Hence could not start "forwarding server".

Problem " 8020 8027 8443 Ports are in use. Hence could not start "forwarding server".

Hello,
I've had a problem during desktop central forwarding set-up. After certificates have been installed an error occured, that said " 8020 8027 8443 Ports are in use. Hence could not start "forwarding server". I can't finish the set-up process due to this error. I've been following the instructions. Could you give me an advice on this issue?

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