I've been running the 888 Android app fine for a few months now (on a Nexus 5). However, after upgrading to Lollipop on Monday, the app has vanished from my app list. If I redownload the .apk, I get the usual install screen but then a message which just says, "App not installed." I have installation from unknown sources enabled.
Does anyone know if this is a widespread problem? Is a fix likely? Is there a workaround?