Custom Menu not reflected correctly

I have earlier seek your advice on how to create a custom menu for my About page. See attached.


This works well while at home page. At other pages such as my Lessons page below, my custom menu for About page does not reflect correctly. See below.


Please advise.

 

Do let us know your website link so that we can give you the exact solution.

 

gomidoricraft.com

Thanks.

 

We have visited your website the problem is occurring due to any one of the plugin you are using, Deactivate all plugins one by one and checkout which plugin creating this problem.