How to re fix fonts of menu in el greco theme

[Marketin]

Hi, I have a problem in el greco theme that I installed the plugin "easy google fonts" to change the color of h1, h2 .. h6, but it has reduced the different fonts in the all pages of theme specially the fonts of menu۔ Despite much effort, they are not recovering۔ I have also uninstalled that plugin but the fonts are not reset.
(The plugin was installed because the typography option is not available in the theme.) I am attaching the pics of this problem.
Please note that When I open this web on my mobile, it looks fine.
Web: https://www.abhilen.com/
Any advice how to resolve this case.