Slack URL doesn't work

[stoobie]

Describe the bug Slack link doesn't work.

To Reproduce Steps to reproduce the behavior:

1. Click link to practice exams here:

Expected behavior Practice exams open.

Screenshots Here's what I see:

Desktop (please complete the following information):

• OS: RHEL 8.5
• Browser: Firefox
• Version 91.6

Additional context I'm a Red Hatter. I'm logged into Slack.