Unity app crashed caused by mono-2.0-bdwgc.dll. Any idea on how to find the main cause?

My old Unity app was developed in 2017.1.1f1 and it has been crashing in one of the testing computer. By examining on the crash.dmg and error.log, it said “mono-2.0-bdwgc.dll caused a Breakpoint (0x80000003) in module mono-2.0-bdwgc.dll at 0023:1021a8af.” But reading the report provided, I couldn’t figure out what exactly was causing it. Anyone has any idea on what could cause it? I am providing the dmg and log files in a zip file for reference.
crash_reports.zip (50.2 KB)