It looks like several LPAM stations I have been copying a few year ago have stopped their transmissions. It just tells about their situation either the country is having problems of some sort, or their finance is short running out of money.
When they turn to internet PODCAST, no one will be interested in listening to them anymore, as there are too many to listen to. Hence they will be forgotten for good by the rest of the world. Having said that, some stations have been coming back, and there are many new stations starting. Shortwave will live forever.