No lol, really.

As some of you may know, I recently bought my first Smartphone, Sony Xperia XA. I was able to log in with it fine before, but then I accidentally logged off. Now when I enter my username and password, I see the text 'Thank you for logging in, Mikachu Yukitatsu', but after that, I get redirected to the 'Have a Blast with us' page, and the fields for the username and password are there again, blank. My two computers, the one with Linux and the one with Windows 10, still work with my account, as well as this Mielikkitalo computer, but the smartphone doesn't.