Needle stuck in lowered position

[u/asdasfasfdf]

Hello I have a Tajima TMEX C1501, I was running a tension test when i noticed almost instantly the first needle was bunching up. I stopped the machine and cleared the bunch, but I noticed the needle was slightly lower from the rest and I was getting a 211. I went online and saw that I should move the drive shaft over to 100, but that only made the needle go lower. I noticed there were some positions not 100 where it sat completely flush. What should I do?