Failed to restart php7.4-fpm.service: unit php7.4-fpm.service is masked - If you're encountering the issue where the php7.4-fpm service is masked on your system, it means that the service has been intentionally disabled and prevented from starting. This might be due to system maintenance or configuration changes. To resolve this, you can unmask the service and start it again.Here's how you can do it:

1. Unmask the Service:
   To unmask the php7.4-fpm.service and allow it to be started, you need to use the systemctl command. Open a terminal and run:

   sudo systemctl unmask php7.4-fpm.service

2. Start the Service:
   After unmasking the service, you can start it using the following command:

   sudo systemctl start php7.4-fpm.service

   You can also enable the service to start on boot, so it automatically starts whenever the system starts:

   sudo systemctl enable php7.4-fpm.service

3. Check Service Status:
   To confirm that the service is running, you can check its status:

   sudo systemctl status php7.4-fpm.service

   If the service is active and running, you should see output indicating that the service is active.

4. Troubleshooting:

   If you encounter any errors or issues while unmasking or starting the service, be sure to check the error messages in the terminal. They can provide more information about what's going wrong. If you're still having trouble, please provide more details about the error messages or any other relevant information, and I'll do my best to assist you further.

   Please note that specific commands or package names might vary depending on your Linux distribution and version. The provided instructions are based on a general approach, and you might need to adapt them to your system's configuration.

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