Bad Gateway on step 4 of 5

[Rina-Code11]

Hi there!

I just created and associated Aloha with my workspace in Slack. The integration part went swimmingly, but when I try to set it up I can't progress past step 4.

When I try to fill in the fourth step and click "Continue" it gives me a bad gateway error. Any idea what could be causing that?

https://www.dropbox.com/s/86sife48tjjvi9a/Screenshot%202018-02-27%2013.54.51.png?dl=0

Let me know if you can help.

Thanks!
-Rina