Hello, Simran,
Thank you for contacting us and for using XStore.
Please provide FTP access, not to cpanel. To create FTP access, please contact your hosting provider for assistance.
In order to identify the issue on your site, we kindly ask you to enable debug mode in WordPress, as per the instructions provided in the following link: https://wordpress.org/support/article/debugging-in-wordpress/. This will help to determine what needs to be fixed.
Kind Regards,
8theme team