End message after poll/quizz

I need to know how to change the end message after a user complete the quiz. It says thank you for play quiz. I need to change it for a message of my own. Maybe add a download button for certification.

How can I do this??

Hello,
You can edit vQuiz language file to change that message. To change the overall Result template you can go to vQuiz Configuration and make the changes as per your requirements. There is also an option in vQuiz settings to choose whether you want to let the user download the certificate or send it via Email.