Why is the lamp not screwed into a spotlight?

I have two R63 rotary spotlights in my bathroom, a couple of months ago I inserted a light bulb into one of them, but the light did not twist in the cartridge and did not turn on, I tried to screw the candle in - it normally turns and turns on, but it is not in the subject in the spotlight, then again I tried to insert R63 for a long time - but it still did not turn on, then the lamp still turned on, and it worked all this time, although it was unclear how it turned, so yesterday I shaved and the lamp (working) fell out of the lamp onto the floor and crashed . What to do to eject the lamp, or can I replace the cartridge?