new Singer Promise 1408 Sewing Machine Won't Start?

I just brought a new sewing machine, a Singer Promise 1408. I had been sewing for approximately half an hour then stopped for a few moments and then started again. Only the machine wouldn't go. The spindle is to the left and from what I can see, there's no threads jammed in the bobbin area or inside the machine. What do I do? I urgently need to complete a bag that I am making for tech or I'll get a low level.

I have three days left and this is important or I'll get bad marks and my teacher would be disappointed and I'm going to be disappointed and also annoyed because this awful machine broke and I looked on the internet and I can't find anything useful and I'll get bad marks and it will be absolutely horrible and I'll get bad marks and my fish will die.
And I'll get bad marks. Please help.