If your account suddenly stopped collecting profiles it could be related to your trial of our Pro plan coming to a close.
When the trial ended, if you did not choose a plan to continue using, your account would have been suspended for inactivity.
It's easy to turn back on, however. All you need to do is go to the Plan Options page in the dashboard and select a plan, paid or free, to reenable your service.
Important: If you had been sending notifications to Slack prior to this, please ensure that you visit the Integrations page and turn your Slack integration back on.