Still the problem
Hello @mobinovaappslym
Thank you for sharing the google sheet.
Could you please test this web app?
The project is connected with a copy of your Google sheet
https://x.thunkable.com/projects/662ae7dcb45ae0cce45b4583
Thanks @ioannis for help
The project you provided works well with the Google sheet, it creates rows … that means the bug is not in the Google sheet.
I’m waiting for solution
Hello @mobinovaappslym 
Could you please share access to a small project with only one screen and a button that creates a row on Google Sheets?
This way I could test it and try to find the root cause.