Some of the news sources don’t work

Hello! I have installed the app and inserted the newsomatic API key as instructed. I've than noticed that some news sources simply do not work, no matter what I do. When i try to run news generator from NFTEvening and Crypto coin news, it gives me the yellow status. However, if I try any other source it works fine for me. Could you please help me anyhow? Many thanks, Klemen