Data deleted by error, and can't import by zoho issue.

Data deleted by error, and can't import by zoho issue.

We deleted by accident all the data from de form Presupuestacion, our last backup is from 19/05/2014.

Can we restore our data?

I tried to import some data about 1 -2 weeks ago, but Zoho creator give this error:

Thank you, greetings.