“…In [28], the authors discussed the existence, uniqueness and UHR stability results for ψ-Hilfer problem via a generalized Gronwall inequality. Moreover, they discussed some important qualitative properties of solutions such as existence, uniqueness, and stability results in the following chain [15,18,19,25,28,29,30,31,32,33,34]. Recently Gao et al, in [35] established the existence and uniqueness of solutions to the Hilfer nonlocal boundary value problem…”