In a few rare occasions this can happen and when it does you can get very nervous. Things get very serious if you can’t even load the homepage!

If the site contains more than just a few skeletal info, re-install it from scratch may not be a good option, so how now?

While the solution is not difficult, you or someone helping you need to know how to run a FTP program as you will need to go into the WP file folder on your server.

Here’s an article that describe the steps in more details:

A Plugin Broke Your WordPress Blog? Here Is What To Do

Good luck.