Posting password protection does not work

Hi. I have a WP blog running at https://www.clientsi.com/csiblog – when I want to add a page or a post and make it password protected, it looks like it works…but then when I go to the post and enter the password that I assigned to the page or post…it just goes back to the same exact page with the open password field again. It is hosted at Godaddy…not sure if this makes a difference…but I have many other sites hosted at Godaddy with various blogs running on client sites that work just fine.
Any ideas?

Thank you very much for any help!
Ken