404 Namespace error

Something with your host or wordpress isn't configured correctly.

http://www.summerfestivalcamp.com/wp-json is returning the 404 - Not found

It is supposed to return something like this:

http://www.demorentals.com/wp-json/

Try going to Wordpress, Settings->Permalinks and switching it to: Day and Name

Allright. I did that. Now I get a 'Error 401 Check your credentials.'

See the sections titled Setup Authentication on the following page:

https://www.inflatableoffice.com/support/knowledge-base/article/wordpress-wshopping-cart-integration_1

Verify you have the correct username and password setup in wordpress

I've verified that I have the correct username and password setup in wordpress.

It should be set to 'io' --- correct?

I tried the username/password you have entered and it didn't work for me, so something isn't set correctly. It doesn't matter what you put for the username or password, as long as it's the same in wordpress as it is in the IO wordpress page. Perhaps you set the account too low of a role?

In Wordpress, go to Users (on the left menu)

1. Click Add New
2. Set username to: io
3. Set the email to your email address
4. Set the password to anything you want (remember it for later)
5. Set the Role to: Editor
6. Click Add New User at the bottom
7. go to IO, Settings->Wordpress and set the username/pass to the same