ZeroDivisionError: 0.0 cannot be raised to a negative power

[younesStrittmatter]

I sometimes get this error:

File ~/Documents/GitHub/AutoResearch/autora-core/venv/lib/python3.11/site-packages/autora/theorist/bms/mcmc.py:654, in Tree.get_sse.<locals>.feval(x, *params)
    652 def feval(x, *params):
    653     args = [xi for xi in x] + [p for p in params]
--> 654     return flam(*args)

File <lambdifygenerated-587968>:2, in _lambdifygenerated(_a0_)
      1 def _lambdifygenerated(_a0_):
----> 2     return fac(_a0_)**(-1.0)

ZeroDivisionError: 0.0 cannot be raised to a negative power