My browser / operating system: Windows NT 10.0, Chrome 88.0.4324.190, No Flash version detected

My project edited with Offline Editor crashed, I did not do anything, and it just can't be opened.

If you need to take a look, it's here:
[Removed - please just share your project on Scratch and provide a link instead.]

I'm sure the file and sprites are less than 10mb,

Glad if someone can help me fix it, I really don't know what's going on.

English isn't my first language

how can I share the project if Scratch can't even open it?

https://drive.google.com/file/d/1Grpv8htF7SAUBHuHVNpKhhmz4SFZ_Fwe/view?usp=sharing

If I can open the file on Scratch and share it here, I wouldn't have to ask for help.

Several costume files are missing (for some reason).

How can I fix it?

Or can someone make the project openable again? appreciated.

If the project is unable to be fixed,

is there a way to save my sprite3 file inside the project?

appreciated if someone can help me, I spent like hundred hours on it. thx