You may need to try this process again after refreshing the webpage or by using a different email address?
It might be worth double checking the domain of your email address is valid and there are no errors in typing.
If this still isn’t working for you, please clear the browsing history of your device and try using an updated browser (eg. Desktop PC, tablet, mobile phone, Google Chrome etc.)?
If you try all the above steps, this should let you bypass any issues.