widehat becomes very big when using mtpro2

I’m using mtpro2 Lite.
When I use widehat it creates a very big widehat as you can see:

code:

documentclass[article,12pt,oneside]
usepackage{stmaryrd}
usepackage{amssymb,amsmath,amsthm}
usepackage[lite]{mtpro2}
begin{document}
begin{equation}
    widehat{G(k)}
end{equation}
end{document}

I downloaded the package from here:
https://ctan.org/pkg/mtp2lite?lang=en