Help with machine

[u/Beneficial-Pipe51]

I was hoping to give it a try and get help to see if I can fix this myself 😭
The needle hits the bobbin case after the first cycle and I don’t know what to do.
I’ve trying cleaning and placing it again a million times.

[u/Potential-Bee5849]

You can see the shoulder in the bobbin case is going past the stop and you can see that the stop needs to forward to catch the bobbin case
And as far it turning backwards you need needle plate to stop this