I looked at the page’s requested content and it was trying to load in a javascript asset from https://localhost:3131 which is rather odd. The main site does bring up so it does look like the home and site URL is set properly which is what I believed the issue might be. That being said it doesn’t rule out that the home and site URL is https://localhost:3131 because your domain name might be hard coded inside the theme.\
You change check your site’s home and site URL via phpMyAdmin (if available) by checking the wp_options table of the database.
If it looks good with the domain name, most likely the issue lies is plugins or the theme. You can do this manually by checking the file system of the install under wp-content/themes to get the available themes and updating them via phpMyAdmin from wp_options:
https://www.inmotionhosting.com/support/edu/wordpress/change-theme-in-db
You may also want to try to disable your site’s plugins as well if that fails too.
https://perishablepress.com/quickly-disable-or-enable-all-wordpress-plugins-via-the-database/
Cheers!
