Please help I try to dowload my app and this happend:
Your app is too large for the regular App Inventor compiler server.
Limits:
http://ai2.appinventor.mit.edu/ AIA size: 30 MB number of screens should be < 10 http://code.appinventor.mit.edu/ AIA size: 50 MB number of screens should be < 10 The APK size also depends on the files types (incompressible / compressible) in the assets.
Use the code... server. 
Thanks