You need to setup the cron job to renew subscriptions automatically. If you are using Cpanel or Vesta Control Panel then you can set it up as shown in below screenshots.
If you don't know the path to your cron-subscriptions.php file then you can use the following command instead of what is shown in the screenshots.
curl --silent Your Sever URL/cron-subscriptions.php > /dev/null 2>&1
For example, If my server url is "https://example.com" then command will be as shown below.
