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 these concerns on your Site and help you out accordingly.
It seems to be a Server end cache issue on your Site because we have confirmed from the Test Site, this is working fine there.
So, can you please ask your Hosting Provider to once try to completely flush out Site or Server cache and then after that completely clear your browser cache too and then check back your Site again.