My project doesn't open correctly any more

Last night I almost finished my project and today it doesn’t show any page in it! Sometimes blocsapp is showing the first page for a couple of seconds and then anything disappears!

You can try it yourself (the project is attached).
Can someone tell me how to fix it? All my work is gone! Heeeeelp!

NIIIS-13.bloc (1.6 MB)

Hi @Heyga4Huk

Some weird things are happening with your project file.
First it opens, then a few seconds later everything just disappears.
And Blocs seems to semi-crash, i can’t start a new file, i can only close Blocs.
Something for @Norm to checkout.