Logistic Regression in seaborn does not show the line

Question

I have a simple dataframe with continous and categorical column:

                               Unemployment Rate          AcceptsCash
E020                                    0.058080                    0
E021                                    0.049818                    0
E022                                    0.037112                    1
E023                                    0.051215                    0
E024                                    0.051215                    0
E025                                    0.065413                    0
E026                                    0.071571                    0
E027                                    0.060130                    0
E029                                    0.035013                    1

however, when I try to display logistic regression plot using seaborn code:

sns.lmplot(x="Unemployment Rate", y="AcceptsCash", data=final_data_copy, logistic=True, fit_reg = True)

I get this warning and furthermore the plot only contains scatter points but not actually the regression line, any tips what can be wrong?

RuntimeWarning: All-NaN slice encountered
  def _nanquantile_ureduce_func(a, q, axis=None, out=None, overwrite_input=False,