A connection could not be established to the socket

[jackwander]

Before submitting your issue, please make sure that you've checked all of the checkboxes below.

• You're running the latest release version of Deployer.
• Ensure that you're running at least PHP 7.2.5, you can check this by running php -v
• You've ran composer install --no-dev from the root of your installation.
• You've ran npm install --production from the root of your installation.
• You've ran rm -rf bootstrap/cache/* from the root of your installation.
• You have restarted the queue listener and node socket server.
• You have run artisan self-diagnosis from the root of your installation.

Describe the bug

After i restarted the supervisor, the error message A connection could not be established to the socket is always showing.

Environment info

Please provide the following instead.

• Operating System: Ubuntu 18.04
• PHP Version: 7.4.6
• Node Version: 14.6.0
• Database System: MySQL
• Database Version: 7.4.6