  In this paper, we consider the first order correction of the entropy and
temperature in a charged black hole with a scalar field. Here, we apply such
correction for the different cases of black holes. These corrections are due to
the thermal fluctuations of statistical physics. Also, we take advantage of
such corrections and study the $ P - V $ critically and phase transition. Also,
we investigate the effect of correction on the critical point and stability of
the system. We obtain modified thermodynamics quantities and find effects of
thermal fluctuations in the stability of the black hole. We find that stability
of black hole is depend on the thermal fluctuations. Finally, we compare the
results of the corrected and uncorrected by thermodynamical quantities.
