Bug Check runs on startup after an exception. the file he is talking about is a driver which must be the method used to lock your folders - it must become part of the file access system during Windows operation, it does not load in SAFE MODE because third party drivers and services do not load in SAFE MODE boots. Follow their advice - they wrote the software so they must know how it works.

To boot into safe mode keep tapping the F5 key at the start of the boot process.