You can install our site as a web app on your iOS device by utilizing the Add to Home Screen feature in Safari. Please see this thread for more details on this.
Note: This feature may not be available in some browsers.
Happened to me this week, just the once. Took about 15 mins before a reboot worked. The S was in a cold garage, but has been for several months, without issue, I still don’t understand why. It’s theses type of things that drain your confidence.