Urgent: Zoho documents are not saving properly! Recovery?

Urgent: Zoho documents are not saving properly! Recovery?

I have been using Zoho Projects to edit documents in my browser.  Initially, everything was working fine, but now when I "save," the changes are not actually saved!  There is no error message, but my work has been lost!  Is there anywhere in your system where my work can be recovered?  I am on an extremely tight deadline, and this has really set me back!  :(