A report on an error in the paper [5] is given. The error is in {\bf Theorem 2.4} of [5]. The condition imposed on {\it the dominant measure} $\rho$ in the theorem of [5] is insufficient in order to deduce the conclusion of the theorem. In this note a corrected theorem is given. See {\bf Theorem A} in \S2 of this note. In this note a stronger condition on $\rho$ is imposed. Corrections for the two corollaries of the theorem in [5] are also given. See {\bf Corollaries A1} and {\bf A2} in this note.