The error/warning messages can be found under "Transcript" tab:
You can either scroll through the transcript or you can use "Ctrl+F" and search for any keyword. You may like to search "error" to jump to error message.
Alternatively, you can refer the project files at the location where you have saved your model and can refer the error file at ***project_files\dp0\Study\AIM\physics1.
The files are by default named as file*.err, and only have the warnings and errors, the model has produced.