The application encountered an error when I selected the East Asia and Oceania map

[christinach]

Descriptive summary

I'm interested to see the Princeton documents, but when I selected the first of the three Princeton documents (East Asia and Oceania) the application encountered an error.

Expected behavior

The application should be able to render the East Asia and Oceania document when I click on the link.

Actual behavior

The application renders an error KeyError in Catalog#show

Steps to reproduce the behavior

1. In the Home page -> facets menu, select Institution -> Princeton
   

2. In the next screen select 'East Asia and Oceania'
   

3. The application renders an error: