Most likely the power cord has failed where it enters the handle.
Here's how to diagnose if it's just the flex at fault: plug it in and switch it on. Grasp the power cord a few inches from where it goes into the handle. Move it very gently and slowly up and down, side to side and maybe round in a circle. Try twisting it a little left and right. If the machine bursts into life, even for a moment while you are doing that, then it needs a replacement power cord. In this case, the cable has broken internally and
a new one will fix it.
If that doesn't work, try doing the same a few inches back from the plug. Very occasionally, they can fail where the wire goes into the plug.