Stuck at title of note

First, search the help docs and this forum. Maybe your question has been answered! The debugging steps can help, too. Still stuck? Delete this line and proceed.

What I’m trying to do

I’m confused what has happened. I’m relatively new to obsidian.
The note has stuck only at title card.

I’m only able to edit the title and can’t write on the note taking section

Things I have tried

I disabled all plugins of community and inbuilt.
Then turned off and on all settings but nothing seems to work

How can we try to reproduce your problem?