I wanted to use mit inventer in my mac but not getting install

I have install version 3.0 in my mac 12.7 version but its showing successfully install but not
locking in system what should i do.

Hello, we are unable to view the app after installing in mac os 12.7 monterey version. Please assist.

Please describe your issue in further detail
Are you trying to use the companion or emulator (depends on the chip: Intel/Apple)?

i am using campanion but it saying

when i scan my project with AI2 campanion
This is error

This project was saved with a newer version of the App Inventor system.
We will attempt to load the project,
but there may be compatibility issues.

using Intel

When you attempt to connect to the Companion, are any errors thrown?