I do NOT think it is crown rot. You could sprinkle cinnnamon into the center of the crown since it might help.
I don't see anything wrong in the first 2 images.
Welcome to the Orchid Forums. We have numerous threads here regarding Phalaenopsis orchid care. There is a great 'sticky' on starting with Supermarket Orchids-Phalaenopsis. Those items will give you all kinds of great information. Such as watering, fertilizing, light and repotting. They should be repotted every two years, once a year would be better.
