Regarding UIPath Certification

Hi,
The UIPath Certification which is free till APRIL30, Does it have a link? Because when I go to the certification page i see a pop up where i have to click and then it takes me to that particular page.
Is there any direct link?

My issue
I was trying to give the practical part of certification exam. I click on start and it popped up the question . Then my system got hanged so i had to restart. I didnt go to that page again. i thought of completing my test and then to go and submit. Once i finished and tried to go to that page , I no longer see the pop up. Then how do i submit?

Can the page be revisited once we leave the page where we submit the automation?
Can i zip my assignment from my windows 10 pc and send it to my mac laptop, Download the folder and upload it in test?

Thanks

https://certificate.uipath.com/ is the link to OLD certification site.