math overflow error in sigma_estimation_empirical.py

[Amellgo]

Context: I need to estimate the sigma value for my data containing values to 1000. The estimator uses math.exp(self.t * x) which gives an error on some values.
Example:

sample = pd.Series([-710, 0, 710]).values
t_n = [0.0, 1.0]
for t in t_n:
    try:
        estimator = SemiParametricMeanSigmaEstimationEmpirical(
            sample=sample,
            t=t
        )
        result = estimator.algorithm(sample)
        sigma_values.append(result.value if result.success else np.nan)
    except:
        sigma_values.append(np.nan)