macbook pro extended warranty

hello, when i go on the mysupport.apple.com website to check the status of my coverage of my macbook pro 15” (2019), it says “ We’re sorry, but we’re unable to find your coverage information at this time. Please try again later.” and i was going back on it to check if i can see my status of my coverage for the macbook pro, it has been like this for several months now and my laptop was bought on august 22nd, 2019 and the expiration is on august 21st,2022, how am i suppose to buy my extended warranty after my first coverage ends if the website doesnt work to pay for the extended warranty?