  In these proceedings, we present the higher-order cumulants of proton
multiplicity distributions of the fixed-target (FXT) run in Au+Au collisions at
$\sqrt{s_{\rm NN}}$ = 3.0 GeV. The cumulant ratios are presented as a function
of centrality and collision energy. The proton cumulant ratio C4/C2 is
consistent with fluctuations driven by baryon number conservation and indicates
an energy regime dominated by hadronic interactions. These data imply that the
QCD critical point could exist at energies higher than 3 GeV if created in
heavy-ion collisions.
