Possibly complete quasi-separation: A fraction 0.27 of observations can be perfectly predicted. This might indicate that there is complete quasi-separation. In this case some parameters will not be identified. Has this happened to someone before? It's kind of new thing that has happened to me

Hey Avtandil, Thank you for your question! Such a message occurs whenever the target is completely or partially determined by some feature in the dataset. You are welcome to research the various techniques to deal with the problem :) Kind regards, 365 Hristina

It is working without this fix now #Apply a fix to the statsmodels library from scipy import stats stats.chisqprob = lambda chisq, df: stats.chi2.sf(chisq, df) and got the same comment when I gave results_log.summary()