Hey @jseanpatel,
There’s a guide for that 
! I can see you’ve done most of the legwork needed in steps 1 and 3. I’ve reconfigured the certificates. For develop.treetoplearning.org it went through without a hitch however you’ll need to double-check the CNAME record for your develop.app.treetoplearning.org site.
Once that’s complete, you can give it a moment and renew the cert. If you have any problems, you know where we are! 