Hello, Ritik Kumar,
Thank you for getting in touch with us.
We do not see the picture/screenshot from you. Please record a video of the problem, upload it on a filesharing service, and provide a link via the Private Content area.
We were able to complete the captcha and login to your site from the first time.
How do you add the captcha? Is it an additional plugin?
Kind Regards,
8theme team