Hi hi! Hello from Berlin and welcome to the forum 
Having lots of questions in the forum would be great! Feel free to ask and share your experiments no matter how simple!
About your question: it was always the plan (afaik) to have projects work forever, but unfortunately and unexpectedly the hosting platform decided to close! 
See here:
Fortunately it should be easy to fix your project.
I guess everyone hopes this doesn’t happen again.