Fatal Error

If your blog does not display, please contact the owner of this site.

If you are the owner of this site please check that MySQL is running properly and all tables are error free.

Could Not Find Blog!
Searched for domain.com/test/ in testdb::wp_blogs table. Is that right?

What do I do now?

Read the bug report page. Some of the guidelines there may help you figure out what went wrong.
If you’re still stuck with this message, then check that your database contains the following tables:

• wp_blogs
• wp_users
• wp_usermeta
• wp_site
• wp_sitemeta
• wp_sitecategories

If you suspect a problem please report it to the support forums but you must include the information asked for in the WPMU bug reporting guidelines!

Here is the fix using phpMyAdmin:
( If you are not familiar with editing MYSQL databases or using phpMyAdmin I suggest you find someone who is.)

From phpMyAdmin select your wordpress database

Browse wp_1_options

Find the ’siteurl’ field then click the pen icon

In the ‘option_value’ change the URL back to what it was.
MAKE SURE the URL does not having a trailing slash.
To save your changes click the GO button.

You will be taken back to the previous screen.
Now find the ‘home’ field.  If you dont see it, click the arrow to jump to the next 30 fields.
Now, edit the URL in the home field and click GO.

Now go back the main database home.

Last field to edit will be the ‘wp_blogs’ table.
Edit the URL field and click GO.

Done.  Now refresh your pages and they should load fine.