when i didn’t switch on the hamburger menu, the menu shows correctly on the desktop page, but on the mobile browser, it shows only black screen.. i.e. black background and black text.. if i click on the correct location, the page open.

but when i change the setting to full page, i.e. the menu only shown as 3 lines on both desktop and mobile, with full page, it works on both platform. same problem with half page menu.. only desktop works and mobile is black on black.. is this a configuration change?

I have tried all background and font colour change.. didn’t makes any difference.