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"Is there any way to fix this file?"
Don't think so. The document could be damaged beyond repair.
Do you have a backup of a previous version? I'd work on with that.
If you like, make the document available to us for testing.
Put it on Dropbox or a similar service and share the download link.
( ACP )
The file expired so I couldn't try this
There's a trouble shoot guide here https://helpx.adobe.com/indesign/kb/troubleshoot-file-issues.html
And at the end there's an email address if you can't get it working.
downloaded your document and tried to open it as copy. A message came up stating there are missing links. Pressed button OK of that message. Then InDesign crashed immediately. Tested with: InDesign 2021 version 126.96.36.199 on Windows 10. Sent an error report to Adobe stating this thread and an URL to the damaged file you provided by WeTransfer.
( So, do not take it off WeTransfer! )
Sorry. That's no good news for you.
( ACP )
Sorry to hear about this trouble. I am hopeful that the issue is fixed by now. If not, please email your file to firstname.lastname@example.org & we will take a look at the file. There are multiple factors that can lead to file corruption, however, we can take a look and see if the file can be repaired.
If the file is larger than 10 Mb, you can upload to Creative Cloud account ( https://helpx.adobe.com/in/creative-cloud/help/share.html ) and send us the document link.
I must also inform you that file recovery can't be guaranteed with a 100% success. We'll surely try our best.