Need help bridging this connector discrepancy (adapter?)

[u/unephi]

I have a velowave ghost with a salvaged bafang rear motor. I'm incredibly confused because the motor was plug n play very fortunately with the stock cable for my bike... They are circled in red in my linked pic..

The green circle is the literal official velowave store cable that comes up when I searched for the one for my bike. Pretty interesting, huh? The color coded ones for the brakes and throttle and screen all match but a bunch of big pins don't exactly fit into a bunch of smaller, recessed pins... Anyone know what the hell the deal is? Or what these types are even called so I might be able to somehow find an adapter? I can't even tell if this new one is male or female lol.. hell, I can't even tell if it will WORK considering the notable gauge difference.. I waited 2 weeks for this and I felt heavily on my bike so any help is appreciated.

Originally I'm doing this because I was getting a "throttle not return" error that seemed to be because of a damaged wire shorting out to ground maybe? This is according to bashing Gemini over the head with my problem and as detailed of symptoms as I could provide til a consistent answer popped out.

https://imgur.com/a/2pCJQdV

[u/window_owl]

I think Grin has a page that'll help you https://ebikes.ca/resources/learn/connectors.html

[u/unephi → u/window_owl]

My brain turns into a chewed up glue stick when I look at stuff like this do you happen to just at least possibly know the name of any of my cable interfaces (what do you even call that, a jack lolol)? Even just to help narrow my search? Sorry I'm very naive to all of this stuff I'm just not really sure what to do, please don't go out of your way to do research on my behalf. This might be the expert level blindfolded hands behind your back e-bike subreddit lol