Thank you for the updates. Please share the issues you are facing on the site one by one here. So we can troubleshoot it in an order.
Also, please allow me to make a duplicator copy of your site using the Duplicator plugin (https://wordpress.org/plugins/duplicator/) for debugging the issue on my local server. So we can troubleshoot the issue without affecting your live site.
Thank you for the updates. I can access the staging site backend. One more request. Please upgrade to the latest version of all the plugins in the staging site after a site backup. We would like to make sure the problem remains with the latest version or not.
ok i will do this withín 30 minutes. please check back. but you can feel free to just upgrade (here is no license on this page, since we have 2 domain endings and only 1 license) or deactivate on the staging as you like.
i get always asked for debug information. can you turn that off?