Earlier I updated several wordpress plugins. One of those updates broke my access to wp-admin. So, I restored the backup I made prior to updating the plugins. At first I could not access wp-admin due a cookie issue. I resolved that by adding these lines to my wp-config:

define('ADMIN_COOKIE_PATH', '/');
define('COOKIE_DOMAIN', '');
define('COOKIEPATH', '');
define('SITECOOKIEPATH', '');

I can now access wp-admin, however whenever I do, I get a message at the top of the screen saying:

you need to configure http://mysite

By default my website is https://mysite, but on the wp-admin settings page it just lists it as http://mysite. What/where do I need to make a change to remove that error?

My other problem is that I cannot access my network dashboard. Whenever I try, it changes the URL from https://mysite/wp-admin/network to https://mysite///wp-admin/network and I get this error:

I use CiviCRM and I cannot access the CiviCRM dashboard. I get this error:

and the civi menu doesn’t display. I have a subsite and from the subsite’s dashboard, I can access Civi, but I get the same error when I try to access the network dashboard.

What do I need to do to regain access to the network dashboard and Civi?

I’m using WordPress 4.9.9 and CiviCRM 5.4.1.