The problem has still not been resolved and cron was singled out.
As I understand it, the problem has to do with the upgrade to Moodle 2.8 and that the F2F plugin has not been updated. It appears that it is not a priority of the developers. What a shame, as this plugin has worked very well in the past and is important to my operation.
Does anyone knows another plugin that could be used instead?
Should I revert to an older Moodle?
Or is there anyone out there that has the ability to update the F2F plugin?