https://(hostname)/admin/ - Too Many Redirects

I installed a Let's Encrypt certificate using one of the other discussions on these forums.  At the time, I did not set up a redirect to force HTTPS using the Apache conf, and everything worked without issue.

I then updated to Firmeare 6.9.4 - my Cert was no longer included, so I re-ran Let's Encrypt to add it back.  This time, I requested it to enforce HTTPS via the Apache config.

Now, when I try to access my Admin page, I get an error that there are too many redirects.  This is ONLY for the Admin page, and not for any of the apps I have installed - they come up fine.

Can anyone direct me to where to disable the redirect for the Admin page, at least long enough to log in and re-apply the firmware?  I can then re-run Let's Encrypt without forcing SSL this time.

Thank you!