Bobbin holder seems to be broke and needle breaks
Here are several things to try.
* When you insert your new needle, make sure it’s positioned correctly (usually with the flat side away from the bobbin, but consult your manual), that it goes all the way into the holder, and that the screw is securely tightened.
If there doesn’t seem to be a problem with your needle, try the following:
* Check your pressure foot and make sure it’s attached securely.
* Change your pressure foot Your pressure foot may be bent, causing your needle to hit it.
* Don’t sew over pins a needle that hits a pin can break. Always remove the pins from your fabric before they reach your needle.
* Don’t pull your fabric as you sew. You could be bending your needle back, causing it to hit your needle plate instead of going into the hole. Just guide your fabric, letting it feed on its own.
* Check your needle plate and make sure it's securely in position.
* Change your needle plate. If you’ve been using a straight stitch needle plate (a plate with a small hole, often used for sewing fine, delicate fabrics), switch to a needle plate with a wider hole.
* Check the position of your needle. Sewing machines with zigzag capability allow you to adjust the position of your needle – right, left, or center. If your needle is not positioned correctly, it may be hitting your needle plate or pressure foot.
* Un-thread your machine and remove your bobbin. Clean any loose thread or lint out of your
bobbin case. Re-thread your machine, reinsert and re-thread your bobbin.
* Change your bobbin. There could be a nick along the edge of your bobbin spool that’s catching your thread as you sew.
Also, before you start to sew a seam, hold the upper and bobbin thread tails. Hold them back
and out of the way as you sew your first couple of stitches. This will keep them from getting
caught in your machine.
I hope these solutions help you.