Deskpro uses a cron job or Windows Scheduled Task to carry out scheduled tasks that need to happen on a regular basis - for example, checking for new emails every minute.

You can see these from the admin interface at Server > Scheduled Tasks.

If you find that cron/Scheduled Task is crashing and you want to investigate, you can enable logging by adding this to the config.php file:

$DP_CONFIG['debug']['write_cron_logfile'] = 1;

When cron runs, debug information will be appended to data/logs/cron.log