Hi. Dreamhost manages my website domain. My website was built with Wordpress. I tried to install wordpress as a one-click tool but now my website is down and has been replaced by a new wordpress website with no content. How do I fix this ?
IIRC, a one-click will also create a new, empty database—hence, no content.
Check here to see if your old database is still there. If so, you can edit wp-config.php to point at the old database.
You may have lost any files (i.e., pictures) that you uploaded if the one-click install wrote over your old site files. Do you have backups of your site?