As title states, the repo is missing files.
Error no file named pytorch_model.bin, tf_model.h5, model.ckpt.index or flax_model.msgpack
Was also reported here:
No, the repo is not missing any files.
This error comes because text-generation-webui hasn't understood that the model is a GPTQ model, so it's trying to load it as a normal HF model.
And it's not understood that it's a GPTQ model because you haven't entered the GPTQ parameters. Please follow the instructions in the README.