@desert-fish
Pls could you check which App have you downloaded on your tablet.If it is this one, you cannot sign in with your laptop credentials, of course:
https://community.windy.com/topic/3756/warning-russian-windy-app-uses-our-name-and-want-you-to-pay-for-nothing
You should have either the true Windy app or the website windy.com