so this error happens when i want to run "sudo systemctl start mysql". the error like this :enter image description here
and when i check to the /var/log/mysql/error.log i got an error message like thisenter image description here
actually i ever create an sql database for radius and when i want to create a web server, this error happens.
i have tried "sudo systemctl restart mysql" and the error be like this enter image description here
i expecting my sql would be running