Unable to import application to New Trial Version

Hi,

I have developed an application from scratch in a Trial Environment which has been expired now.
I have exported the application zip before the trial expired. Now I want to import the same application into a new trial environment. 
But somehow the Inspect says all my 33 objects will be imported but when  I click on the Import Package button only groups are getting imported and the rest all are getting failed.

Kindly help.