Unable to start ghost , connection error

+ sudo systemctl is-active ghost_guru61-com
✔ Validating config
✔ Checking folder permissions
✔ Checking file permissions
✔ Checking content folder ownership
✔ Checking memory availability
✔ Checking binary dependencies
✔ Checking systemd unit file
✔ Checking systemd node version - found v16.19.0
+ sudo systemctl start ghost_guru61-com
+ sudo systemctl stop ghost_guru61-com
✖ Starting Ghost: guru61-com
A GhostError occurred.

Message: Could not communicate with Ghost
Suggestion: journalctl -u ghost_guru61-com -n 50

Debug Information:
    OS: Ubuntu, v18.04.6 LTS
    Node Version: v16.19.0
    Ghost Version: 5.37.0
    Ghost-CLI Version: 1.24.0
    Environment: production
    Command: 'ghost start'

Additional log info available in: /home/root2/.ghost/logs/ghost-cli-debug-2023-03-07T13_45_35_443Z.log

Try running ghost doctor to check your system for known issues.

You can always refer to https://ghost.org/docs/ghost-cli/ for troubleshooting.
root2@linux:/var/www/guru61_com$ ghost doctor                                   
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✔ Checking system Node.js version - found v16.19.0
✔ Checking logged in user
✔ Ensuring user is not logged in as ghost user
✔ Checking if logged in user is directory owner
✔ Checking current folder permissions
✔ Checking system compatibility
✔ Checking for a MySQL installation
+ sudo systemctl is-active ghost_guru61-com
+ sudo systemctl reset-failed ghost_guru61-com
✔ Validating config
✔ Checking folder permissions
✔ Checking file permissions
✔ Checking content folder ownership
✔ Checking memory availability
✔ Checking binary dependencies
✔ Checking free space
✔ Checking systemd unit file
✔ Checking systemd node version - found v16.19.0
root2@linux:/var/www/guru61_com$ ghost restart

Hmm, is that a docker site? Or that is a pretty new Ghost install?

What ghost doctor says?