PR#1493 was accepted 3 days ago (rebuild package against new libnfs) and I see kodi-rbp-17.3-3 in the armv7 repos but kodi-rbp-17.3-2 is current in the armv6 repos. Basically, RPi2 got the update but RPi (first gen) did not. If user updates a RPi the new libnfs is pulled and breaks kodi.