If your Cialfo calendar looks something like this, you may have an all-day or multi-day event on your synced Google or Outlook calendar, which is causing the blockage inside Cialfo.
The Fix
First, identify which event is causing the blockage by scrolling all the way up and seeing the event title - the common culprits are block out events caused by Out Of Office events.
Next, go to that event in your source calendar (we sync with Google and Outlook) and adjust the AVAILABILITY settings.
Your calendar should shape up after that!