I broke the openseizuredetector app web interface in V3.1.13. I now have an updated version (V3.1.14) which I think fixes the issue – if you are affected by the problem please will you try this version by downloading it form the source code repository here: https://github.com/OpenSeizureDetector/Android_Pebble_SD/raw/master/app/release/app-release-3.1.14.apk
If you have any trouble, just uninstall it and re-install the version from Google Play Store.
Thanks
Graham.