Hi Greg,
Looks like they (hooks.slack.com) moved to Let's Encrypt on March 14th.
Your server is likely lacking the root certificates for this.
Let's Encrypt is wildly common now, so I expect this problem will just get
worse for more services (including ours).
You'll need to install the Let's
Hi Luis,
Can you show me how you installed PySVN?
It's important to use precisely the version of Python that your web server
is using to run Review Board. It can't be `pip install`'d (there is a
"pysvn" package but it's actually something else). We do have our own
installer though that can help: