Can you explain in more detail?
I can already see a primary menu on your site.
Sorry to confuse you i want my website Menu (Home, Hackonology, Learning...etc) on my Forum Page.
if it is possible.
if you have some coding knowledge, viewing your wp theme header and then duplicating the wp astra
https://wpastra.com/ theme header in your existing forum theme is doable as .m. has already stated, though since your wp astra theme heaser is a responsive menu, it would be wise to say begin with a responsive mybb 1822 compat theme to insert it into, just a thought as your current theme revo for mybb 1.8.17 by iandrew is not responsive and also for 1817 not 1822 so while first you would have to make minor updates to revo for 1822 usage and you then after removing its primary top menu and inserting your responsive wp theme top menu would then have to start making revo responsive hence why I suggested making it easier on yourself and begin with a respo theme for 1822 as base to then insert your menu and further modify, just a thought. Best of luck.