[Snapshot Pro] Snapshot Pro filling up my disc space

I had the plugin installed and active. Previously I had setup Managed backups, but after I found that I could not do individual subsite managed backups I stopped them. With no scheduled snapshots, the plugin was creating its own snapshots eating up 600GB of data. The dashboard showed no snapshots. The only way to get this to stop was to deactivate and delete the plugin. HELP!?!?!?!