Oh boy, @Angel963. I keep making rookie mistakes here. The error is being caused by misspelling phaseCannon as phaserCannon in the United Earth faction. Imma fix it up. That was a huge mistake on my part and I apologize for the delay you've had to experience because I didn't check my work, like I should have.
Also, loading your save? I wasn't aware that the add-on would show up in a previous save. Its never worked that way in my experience.
Also, try one more gin, like my nephew used to say. If you could try to download again. Hopefully, and I really, really hope so, there shouldn't be an error this time. But dear god, I will start pulling hair if I made another idiot mistake, after checking it over this time.