Error handling for "response" in multiverse

[belkarx]

Adding a try-except here might be useful, logging that I reached this error condition, on this line.

I can't repro it, think I switched models and race-conditioned or something, but here's the traceback in case someone else has this issue:

Traceback (most recent call last):
  File "/usr/lib/python3.9/tkinter/__init__.py", line 1892, in __call__
    return self.func(*args)
  File "/home/uk000/gh/loom/components/modules.py", line 1999, in propagate
    multiverse, ground_truth, prompt = self.state.generate_greedy_multiverse(max_depth=self.max_depth.get(),
  File "/home/uk000/gh/loom/model.py", line 2471, in generate_greedy_multiverse
    multiverse, ground_truth = greedy_word_multiverse(prompt=prompt, ground_truth=ground_truth, max_depth=max_depth,
  File "/home/uk000/gh/loom/util/multiverse_util.py", line 41, in greedy_word_multiverse
    token[1]['children'], _ = greedy_word_multiverse(prompt + token[0], ground_truth='', max_depth=max_depth-1,
  File "/home/uk000/gh/loom/util/multiverse_util.py", line 41, in greedy_word_multiverse
    token[1]['children'], _ = greedy_word_multiverse(prompt + token[0], ground_truth='', max_depth=max_depth-1,
  File "/home/uk000/gh/loom/util/multiverse_util.py", line 34, in greedy_word_multiverse
    logprobs = response.choices[0]["logprobs"]["top_logprobs"][0]
IndexError: list index out of range