HELP! Unable to edit library on the playground page

Hi, I have created a page for TaskManager library on the playground, which I can no longer edit for some reason. It asks for the password, and although I am already logged in, and re-type the same exact password, it does not let me in. There is no "forgot password" button or an error message - just goes back to the password page again and again. What can I do to update the page? Thanks. Anatoli Arkhipenko

NEVERMIND! Got an answer from support. Thanks.