To renew INVOPANEL packages and send reminders automatically, you need to configure a cron job:
You must create an entry for the file cron.php?c=nnnnnnnn (change the code nnnnnnnn in Preferences> General) and fix at an early hour, which will come to you reminders to your customers first hour.
Example crontab to run at 7 am each morning:
0 7 * * * php-q "home/user/public_html/folder_of_INVOPANEL/cron.php?c=nnnnnnnn"
(change the code nnnnnnnn in Preferences > General)
How to set up a cronjob to perform backups of the database:
Create a cron entry to:
0 8 * * * php-q "home/user/public_html/folder_of_INVOPANEL/backup.php?c=nnnnnnnn"
Configuring the IP check (optional):
0 9 * * * php-q "home/user/public_html/folder_of_INVOPANEL/checkip.php?c=nnnnnnnn"