Hey there Abhilekh,
Sorry to hear you're having this issue. Have you tried clearing your cache/cookies recently? With our recent SSO migration, we're suggesting all users to clear their caches in order to solve several issues we have been experiencing, including disappearing text boxes.
Let us know if it works! If it doesn't, please reach us directly at community@tomshardware.com so we can take this to the Help Team.
Thank you,
Caitlin
Assistant Community Manager