Hi,
For your select server option, there showing,
Mixed Content: The page at ‘<URL>’ was loaded over HTTPS, but requested an insecure stylesheet ‘<URL>’. This request has been blocked; the content must be served over HTTPS wordpress
this error, I think this error is causing for your site .htaccess
rewrite problem or this option adjustments as I image attached,
now, adjusting these options the site has gone to offline, please now, try to rename your plugins folder from wp-content/plugins
for deactivating all plugins, then try to backup your htaccess
file, then generating a new, I hope thus your problem will be solved
thanks