Paypal transaction is being processed Please Wait...

I used the payment option and everything seemed to work correctly. I received a confirmation email from Paypal and even got a confirmation email from my Zoho application. But after clicking OK on the Paypal screen I had a never-ending message 'Transaction is being processed Please Wait Do not close this screen' Is this a problem on the Paypal side or on the Zoho side? I used Firefox.

Thanks for looking in to this problem.

Herb Wexler