Sketchup Pro model frozen or black screen

Here is my model above. I am new at this and have built and amended and added to the same model over and over which I’m sure has over extended it with too much.

I have a new computer which is the MacBook Air M3 16GB. I don’t think things have come over correctly.

I’ve tried doing a purge but doesn’t show anything completed.

Is there anything that can be done to retrieve this?

Can you share the skp file?

Looking at your model in the viewer link you supplied shows that it is quite heavy, 160mb is quite large for the web based version. Your graphic card and browser are struggling to display it.
As you can see here on my PC in FF a simple zoom requires it to reduce the detail, hence the multiple black bounding boxes.
GIF 24-02-2025 2-48-35 PM
You need to download the model to your computer, then upload it to a sharing site, dropbox etc, and then share the link here if you want anyone to be able to clean it up for you.

Thank you for your reply. I will attempt this after work and send it through. Thanks so much for your help.