GASX model example that does not fit

gasx.py

import pandas as pd
import pyflux as pf

def build_model(data, ar=4, sc=4, family=pf.families.Poisson, formula=None):
    if formula is None:
        formula = "casos~1"
    model = pf.GASX(data=data, ar=ar, sc=sc, family=family(), formula=formula)
    return model
  
Full = pd.read_csv('data.csv.gz')
model = build_model(Full, ar=4, sc=6, formula='casos~1+temp_min+casos_est+p_inc100k+numero+umid_min+pressao_min+numero')
fit = model.fit()# 'BBVI', iterations=1000, optimizer='RMSProp')
print(fit.summary())