Minha tela inicial para acessar os meus projetos fica travando

Minha tela inicial para acessar os meu projetos fica travando.
O que fazer?

This might be due to a large project. If you go to http://ai2.appinventor.mit.edu/?autoload=false it will not load the last project you opened and then you can try opening a different project. You may also want to close other programs you have open to free up memory if you have a particularly complicated project so that you have more resources available to run App Inventor.