Fully functional Rekordbox 4.5, reset Database now my license key isn't recognized.

So, I have my Mac HD from my MB Pro (The laptop failed, so I put my SSD into my MacMini) and everything worked perfectly for years. I was performing a bunch of cleanup on my iTunes, and drive to get rid of duplicate files, and clean up my collection. Rekordbox had some problems starting and importing the Collection, so as part of the troubleshooting steps, I reset my database. My collection now loads, but now my Rekordbox 4.5 is now telling me my Trial expires in 28 days, and it won't accept the License Key from my version of Rekordbox that came with my CDJ-2000 Nexus decks. This license key is the one that was working prior to the database reset. I don't use the cloud features in RB5+ nor will I ever use/need them. I just want to load up Rekordbox, have my collection, drag songs onto my decks to load them, and record the little mixes I do for myself.

One additional tidbit. I get Activation Error 6 when I try to enter my license key. I keep seeing around that I need to update to Version 6.6.4 or newer. These are the subscription plans for which I absolutely will NOT use. Your troubleshooting steps are what caused this issue, and I just want my system back up and running exactly how it was previously.

I'm pretty sure the official response is going to be that 4.5 is no longer supported, I'm afraid.

As DaVOLD mentioned above...

Unfortunately support for rekordbox 4 and 5 has ended quite some time ago. 

So the official stance is that even though your troubleshooting steps killed my fully licensed and functional install, that it's too bad so sad? You going to suggest or offer a free subscription tier or license key that will give me the full functionality of v4.5 without any of that cloud BS? 

Essentially I want to use Rekordbox how I was prior:

• Drag and Drop tracks onto the Decks (via the LINK over Ethernet NOT HID mode on USB)
• Record the mixes I do directly onto my Mac.

Does Export Mode in the newer versions accomplish that atleast?

Yes, you can do that in Export Mode. 

But you can't record in Export Mode.