We are aware that the built-in stations in CastCatcher v1.2 and earlier are currently no longer working. These stations were a random assortment of shoutcast.com streams to provided an example for users adding their own stations. These stations have since gone down. These default stations have been replaced in v1.3 with live ones.
Current users: please just delete the non-functioning stations and add your own. That is the whole purpose of CastCatcher anyway!