LibreCAD crashed and corrupted the file

I was deleting a layer when LibreCAD crashed and corrupted the file. Now LibreCAD hangs when I try to open it. I tried 3 other programs that can read a .dxf and none of them can open it. Is there any way to recover as I spent hours on it. There are no ~ or # backup files. It had dimension lines in it and I was deleting a layer when it crashed.
Link to dxf file:
https://drive.google.com/file/d/1t3l-AvpLiNjvFhWzA-mBFZnPczABtz8Q

Link to log.txt
https://drive.google.com/file/d/1UPGw1TjAzJDTBSZx5TOt_c8tua5am48H

Sadly, there are no useful information in the DXF file. It's size is to small to contain any entities and a deeper look showed, that it is corrupted already in the TABLES section, before any entity information.
With missing ENDSEC and EOF information, it's no surprise, that the file does not open in any CAD app.

The log file seems not to be related with LibreCAD, thus also no valuable information.

Because LibreCAD don't touch the file while drawing it's weird.
All information is kept in memory and auto save and backup is written to different files.
Only when one triggers File -> Save LibreCAD would touch the DXF file.
So when it crashes on deleting a layer, it shouldn't corrupt the DXF file.
Maybe there are two unrelated issues.

I opened the file with the latest LibreCAD version and it did not hang or crash.
So probably you use an older version and I recommend to update to latest release 2.2.0.
And you should also check auto backup and auto save settings in Application preferences, when you haven't found any DXF files containing ~ or #.
Have you used the file manager search function? Maybe the backup files are somewhere hidden in users home folder.