Getting error when trying to load LLM

[Pojo267]

I've tried loading two different LLMs within the GPT Loader Simple node and both give me the same error and I'm not sure what the issue is.

The two LLMs attempted are...
dolphin-2.5-mixtral-8x7b.Q5_K_M.gguf
phi-2-layla-v1-chatml-Q8_0.gguf

Error occurred when executing GPT Loader Simple [n-suite]:

File "...\GitHub\ComfyUI\execution.py", line 151, in recursive_execute
output_data, output_ui = get_output_data(obj, input_data_all)
File "...\GitHub\ComfyUI\execution.py", line 81, in get_output_data
return_values = map_node_over_list(obj, input_data_all, obj.FUNCTION, allow_interrupt=True)
File "...\GitHub\ComfyUI\custom_nodes\ComfyUI-0246\utils.py", line 381, in new_func
res_value = old_func(*final_args, **kwargs)
File "...\GitHub\ComfyUI\execution.py", line 74, in map_node_over_list
results.append(getattr(obj, func)(**slice_dict(input_data_all, i)))
File "...\GitHub\ComfyUI\custom_nodes\ComfyUI-N-Nodes\py\gptcpp_node.py", line 388, in load_gpt_checkpoint
llm = Llama(model_path=ckpt_path, n_gpu_layers=gpu_layers, verbose=False, n_threads=n_threads, n_ctx=max_ctx)
File "...\AppData\Local\Programs\Python\Python310\lib\site-packages\llama_cpp\llama.py", line 923, in __init__
self._n_vocab = self.n_vocab()
File "...\AppData\Local\Programs\Python\Python310\lib\site-packages\llama_cpp\llama.py", line 2184, in n_vocab
return self._model.n_vocab()
File "...\AppData\Local\Programs\Python\Python310\lib\site-packages\llama_cpp\llama.py", line 250, in n_vocab
assert self.model is not None