What does "An illegal choice has been detected. Please contact the site administrator." mean? And what can I do about it?

What does "An illegal choice has been detected. Please contact the site administrator." mean? And what can I do about it?

It means the web server didn't know how to deal with some of the data submitted.  We've found for CW2.0 this tends to happen when a user has multiple browser tabs or windows open to the site.  Some of the partially submitted data gets sent along when save or submit is clicked in the other tab/window.  In every case we've seen, simply trying again works.  You can make the message more friendly if you like by following the steps below.

Go to /admin/user/permissions (YOURSITE.timebanks.org/admin/user/permissions) or using the menu bar click User management, then Permissions

Scroll down to Stringoverrides module and click the box for TBUSA site admin for the row administer string overrides.

If you aren't very familiar with Drupal don't check or uncheck any other boxes on this page.

Scroll to the bottom of the page and click SAVE PERMISSIONS

Now go to /admin/settings/stringoverrides, or using the admin bar, Site Configuration, then String Overrides.

In an empty field in the left column copy and paste the following text exactly: An illegal choice has been detected. Please contact the site administrator.

In the corresponding box to the right, enter your replacement message.  We suggest: Oops, an error has occurred.  This may have been caused because you have another browser window/tab open.  Try again.

Click SAVE CONFIGURATION.