I am using cs50 sandbox and have tried to use debug50 over the past few weeks with no luck; I keep googling, watching CS50 videos, not just Professor Malan's lectures, but also Professor Doug Lloyd's short videos. One of my search results suggested using update50, however, I encountered the same problem.
The only tool I was able to use successfully with and without the cs50 tag was help50, and I am really grateful for this tool as it has helped me a lot.
I am not sure if this is related, but I sometimes get a lot of errors because I'm still a beginner. Could this be part of the debug50 problem or is that unrelated?