Go to the Google Chrome Browser App on your phone.
Click on the Menu icon (resembling 3 dots vertically arranged on the top right), and choose Settings.
Find and click on Site Settings. Choose Cookies and Pop-ups to enable the features by toggling the options accordingly.
Exit the Settings page. If you were at the Diagnostics Test page, click on the Run Test Again button to run another test to check if your device is ready.
You may now continue to attempt registration/payment.
If you wish to disable the features after making registration/payment, repeat steps 1-4 and ensure that the trigger button(s) is tapped again.
Please refer to the video guide using Google Chrome App in Android OS as embedded below: