Problem in importing aia on http://ai2.appinventor.mit.edu/

Hi Everyone

I had recently some bugs and crashing apps on that url [ http://ai2.appinventor.mit.edu/ ] specially in UI when a screen crash bam it's the end

i tried to save some of my project on code.appinventor.mit.edu but the problemm is when i try to publish a new version it needs the same key and still can't import it to that old one [http://ai2.appinventor.mit.edu ] any fixes to this issue ?