Phenom Noir Horrible Grinding Noise When Printing

This is my third print with the Phenom Noir. First and second ones went fine, but halfway through the 3rd print the printer started making this horrible grinding noise. See video: Phenom Noir Grinding Noise. Does anyone know what’s happening and how to fix it?

Hi Nikki,Check whether there is any foreign matter on the guide rail, and check whether the Z-axis screws are loose. If the above check still fails to solve the problem, please contact us by email so that the peopoly technical team can help you in time. https://docs.google.com/presentation/d/1IIngqaLFl8xBkMRJCVnDYsAPzX2Y1HNkxrW3OM43q1s/edit?usp=sharing

I contacted you be email, but it said your mailbox was full…