Asana 500 error - There was an error connecting with Asana!

Summary

After installing the Asana integration with HipChat Server (tested v1.4.0, however all HCS versions may be affected), whenever selecting a 'Choose an Asana Team:' selecting most teams results in a 'There was an error connecting with Asana! (status: 500, message: Internal Server Error)'

Environment

HipChat Server (all versions)

Steps to Reproduce

1. Verify that you have a valid, trusted and signed SSL certificate installed.
2. Install the Asana integration.
3. Sign into Asana to connect HCS to Asana.
4. Select your organization and then select the team. After selecting the team the error message displays.

Expected Results

Selecting the team should result in the team tasks displaying below.

Actual Results

A 500 error is displayed.

Notes

The error is a 500 error, however it seems it's thrown on the integration side as the coral.log in HIpChat Server doesn't contain the error.

Workaround

None at this time.