Oh no, my machine is making a squeaking noise.

I was trying to do an ith project for my dd to give to school friends for Easter and my needle broke. In typical fashion it was started last minute.

I have replaced the needle, removed the bobbin case and cleaned everywhere I could get to. I am normally good at finding stray thread, but I am stumped. It is making a squeaky noise each time the hook goes around the bobbin. I am really hoping I can fix it myself as I can't take it into the shop for repair at the moment. I would really appreciate any advice.
Needless to say, due to this happening mid project I had to come up with another idea for dd to give her friends. I have shared it in the crafting section.

UPDATE

I removed the needle and plate. the bobbin case is scraping on the hook race as it moves around. When I remove the bobbin case there is no noise so I think the hook has been damaged or the bobbin case has or both. I have filed off a couple of places that looked to have burrs the noise is there but is much less so I think I am on the right track. Fortunately the timing seems to be fine. I will try and chat to a technician next week when they are back open.
Thank you all for your advice.