I can not connect to the wp-admin

I’m not sure what you mean by “you changed the subjet”. If you changed the folder name you’ll need to change it back.

Also, you’ll need to give us a bit more information like a link to the site, the error message you’re getting (if any), etc. Hard to know what you mean…

I can’t connect to the wp-admin page either. I didn’t change anything. When I try to connect, I get this message on a blank white screen: Http/1.1 Service Unavailable

What am I doing wrong?

@monicamoni

If you have change the site address in general settings in your dashboard, then you will have to change it back using one of the methods outlined in this article: Changing The Site URL

@kasphotos
It may be a temporary condition that isn’t under your control. Tons of information found here: http/1.1 service unavailable

double check your wp-config.php file settings for the database name, database username and database password.