Receiving HTTP 500 Error when accessing syndesis-rest and syndesis-ui apps

[honghuac]

I have managed to install syndesis on OCP 3.6 (without Minishift)
The pods are up and running, and so are the routes.

Unfortunately, I am unable to access:

1. Syndesis on https://syndesis.127.0.01.nip.io
2. Any of the these apps - syndesis-rest and syndesis-ui

I have a Github OAuth app set, with client ID and client Secret setup as environmental variables in the OCP node. What could be the problem?