Cannot open post when click them

I have my blog page, and I can see the posts I added, however, when clicking them they do not open. Why and what can I do? I’m using the parent theme and but this theme worked fine on my local host.. My host service provider told me to share your issue here

theme name Magsy

The method that I’ve tried:
Uninstall all plugins to find issue causing plugin
Removed cache plugin( it was automatically adding code to my htaccess file)
removed all the cache folders for the server

The page I need help with: [log in to see the link]