YR YURUI U-shape Sausage Clipper Clipping Machine, Manual Sausage Clipper, Portable Clipping Machine with 4000PCS U-shape Clips together

I bought this in April and it worked good the first few times. Now 4 months later it does not clip consistently. I have to use pliers to manually pinch the clip to seal the bag. I am still using the clips that came with my purchase so it is not the clips. I really want to make this work so I continue trying to find ways to use it but always using pliers to pinch the clips to make a firm seal.