SketchUp 2021 unexpected file

Hi guys, this is a project file in progress at school, and it opened well a few days ago, but it won’t open today because there is something to modify. How shall I do it?
skb file also has no response. And there are no files in the appdata directory. Can I recover the file?

model-SU2022.skp (14.3 MB)

A few errors, probably from imported models.

Purge model

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damm… you save my life sir. thanks a lot