Inability to download books

I have clicked "Share on Facebook" button, typed a post and no download.  It just give me the popup over and over again.  It seems the ebook is remaining locked.  I am logged into the c-sharpcorner.com website and my facebook account

 

I see many users have had the same problem and have requested the ebook to be sent to their email address.  

 

Am I doing something wrong?   

Hello 

 

Yes that's true , but you can share once only . [Not Every time]

 

Than you can get unlimited book download functionality 

 

So go for it , Thanks :)