Address book doesn't load

[paalex]

Describe the bug
The address book app doesn't load

Mainnet or testnet?
rinkeby

Organization
The provided demo on https://www.autark.xyz/apps

To Reproduce
Steps to reproduce the behavior:

1. Go to https://rinkeby.client.aragon.org/#/openstartup/0xce4c2880f15ea07734bd940f74f1265d5168ba51/
2. See that nothing loads where the app should display

Expected behavior
The address book app UI would be seen

Screenshots

Desktop (please complete the following information):

• OS and OS version: maxOS Mojave 10.14.6, Windows 10
• Browser and browser version: Brave (Version 1.13.82 Chromium: 85.0.4183.83 (Official Build) (64-bit)), Chrome (Version 85.0.4183.83 (Official Build) (64-bit))

Additional context
In the browser console I see TypeError: Cannot read property 'toUpperCase' of undefined. Maybe related