Cannot Log In

For the past two days I have not been able to log in to WordPress. No updates or changes were made to the site since it stopped working. When I go to log in (https://mirrixlooms.com/wp/wp-admin/) nothing happens, as if the page is perpetually loading. If I use this url to log in (https://www.mirrixlooms.com/wp/wp-login.php) I can get to the page to type in my username and password, but when I click “log in” the same thing happens. I have tried clearing cookies and my cache and using different browsers and computers. I have no idea what this could be since no changes were made to the site and I’m not really sure what I should try. I haven’t disabled plugins or anything because nothing has changed (new downloads or updates) since I was last able to log in. This is a live ecommerce site so I’m really afraid to mess something up. Thank you!