Cannot Open Rekordbox

0) Have you read the "READ ME FIRST" thread in its entirety AND TRIED THE SOLUTIONS THERE before posting:

Yes, I swear it!
1) Operating System: OS X 10.14.6,
2) OS Type: 64bit
3) rekordbox version:  Cant run (6.6.1)
4) Using LINK: No 
5) Source Hard drive / Flash drive / SD card file system:

Built in Hard Drive
5c) Does the device have multiple partitions: No
5e) With what utility did you format the device: OS X
6) Export Hard drive / Flash drive / SD card file system: Unapplicable 
7) Have you scanned your files for errors: No / Yes
7b) Have you scanned your drive for errors: No / Yes
8) Is rekordbox crashing at all: Yes
8a) If crashing, is it resulting in: an error message OR a crash log OR both

NEITHER!
8b) If not crashing, are there any error messages: No 
9) Are you able to repeat / reproduce the problem: Yes
9a) If yes, can you do it consistently: Yes
10) Does the problem occur with one specific song: No 
11) Any other notes regarding your setup only: 
12) Provide as much detail of the issue here:

When I boot rekordbox, I see the 'reading tracks' screen at 0% before the program closes. My mac views the program as still running, but it occupies no windows. I've tried renaming my backups, rebooting my computer, force quitting rekordbox, but nothing works. Please help! I don't want to lose all my track metadata :(