Can't access User interface

I just made a change to my config.yaml file. I chose check configuration which came back good and then did a restart. I can no longer access the User interface. If I try from a local LAN attached PC it just stays at Initializing. If I try from an android device I get “Failed to perform SSL handshake”. I use DuckDNS to access the installation. If I try to access it directly using the https://IP address:8123 I get “SSL Protocol Error”.
Any ideas on how to resolve this?