Sorry to hear about the inconvenience. Kindly please share your Site WP-ADMIN Login details in the Private Content field so that we can check this concern on your Site and give you a possible solution.
Please deactivate all the third-party plugins and activate only theme-required plugins on the site and then check the issue. I am sure your issue will be solved. Then, activate the third-party plugins one by one and check which plugin is creating the issue for you.
Otherwise, if the issue still exists, then keep the third-party plugins deactivated and let me know I will check and give you a possible solution.