Here is the Crash.log, you asked for.
Is's the last auto-build version number "201501172301" (AKA Alpha 16)
Any dev want to take a stab at this? Should be a pretty straightforward drill-down to fix it. I'd like to keep working on the new front-end features.
I took a quick look, and it doesn't seem to be a problem with ZIP files in general (it gets through several successfully). Problem seems to happen for a specific file: Resident+Evil+2.zip. It recognizes it as a ZIP file, but throws an Exception internally to the ZipFile class upon instantiation.
My initial thought is there may be a corruption/ incompatibility with the ZipFile utility class, but I'll need the actual file that is causing the problem to diagnose it. If that is the problem, I'll make sure the CacheRomInfoTask class handles the exception gracefully.
@scorpio16v, does the scan work if you move that one file out of the search path? If not, please post another report after moving the file out. If the scan does work with that file out of the way, could you PM me info on the source of the file so I can acquire it for testing?