Why can I not launch application because of reason 5?

The advantage of the cold-launch system is in its safety: should the missile engine malfunction while the warhead is armed to detonate during firing, the hot-launch system would be doomed, but the cold-launch system can still eject the missile out of the cell and eliminate or reduce the threat. For this reason, Russian VLS is often designed with a slanted angle instead of being perpendicular so that when the malfunctioned missile is ejected, it would fall into the water instead of landing on the deck. Another advantage of the cold-launch system is in its low life cycle cost of the launching tubes: since the engine starts within the tube in a hot-launch system during launches, the tubes of the hot-launch system can only sustain a limited number of launches, after which the tube must be replaced. A cold-launch system, in contrast, can last much longer because the tubes are not subject to the extreme heat blasts like that of the hot-launch system, because in the cold-launch system, the engine does not start until after the missile was ejected out of the tube.