THOUGH I CHANGED TO NEO I AM NOT ABLE TO FIND VARIOUS OPTIONS PLEASE GUYS OR TEAM AND LOOK INTO IT
Check your Project Properties to make sure you have
Blocks Toolkit = default
!
Hi
You also need to be using either FireFox (best) or Chrome, and make sure that App Inventor is 'King' of the browser. Also ensure that other Web Sites (and other Users) are not using - up the broadband.
From your screenshot - you have switched back from Neo to Classic App Inventor? If so, close App Inventor, clear the Browser data back to before you first launched App Inventor today, close the Browser, then re-launch.