Error in block area

Bugs and Other Issues
1

THIS POP-UP MESSAGE IN SHOWN
"The blocks area did not load properly. Changes to the blocks for screen 5245402374078464_Screen1 will not be saved."
PLEASE HELP

2

Go to your projects list at
MIT App Inventor
and see if smaller projects can load.

You might have to revert to a saved .aia export.

3

like the coding is correct but it is not working

4

please tell what to do