There is a little drive spring that we are missing, I have contacted them and they do not sell spare parts if it ever goes missing. I asked for spring specs to just order a new one from a different company, and still haven’t gotten a response. I have reached out everyday for almost 3 weeks. Very frustrating!!! I got another spring that isn’t the right tension or size, to make it work but it’s too much pressure and if I don’t stop it at the right time the inside plastic auger starts to get grinder up. Ugh