I’m sure you already know lol, dropping a saber is no biggy.
It’s possible the connection in the LED housing shifted and is now bridged with the green lead. US single colour LED’s are RGB so they could be rewired to any of those colours (with a resistor for the red).
To check this, you’d need to slide the LED out of the emitter. You can take out the guts of the LED from the housing by unscrewing it from the bottom, then you’d have a good look at the wiring. If you do this, there should be an R, G, B labelled along the outer edge of the LED (one wire connected to a negative with a black wire) letting you know where the red wire should be attached.
That’s just my guess at this point