Snapshot not triggering backup

Hi,

This is a follow up of https://premium.wpmudev.org/forums/topic/snapshot-upload-to-dropbox-times-pending.

I tried to deactivate the plugin but it didn't work. Even an uninstall and install didn't. It only updates the "Next File Send" time to when the plugin gets activated but it never gets to trigger.

Yes, my site is live and I've also went into domain.com/wp-cron.php and saw blank screen but it didn't help to trigger the backup.