To better understand the issue, please share some screenshots of the issue you’re encountering. This will help me analyze the problem and provide you with the best possible solution.
Additionally, please share the page URL so I can investigate further and provide 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 3rd party plugins deactivated and share the valid WP logins details so I can check and give you a possible solution.