Menu Playing up on an Android Phone Help

Please Help

Menu works fine on tablets and pc’s and iOS devices such as Iphone but not on Android phone such as a Samsung Note 9

1st The conflict is moving the menu down half the page on the android phone when opened
2nd conflict when you click the drop down items such as Professional Courses or Personal Courses it opens up but automatically opens up the 1st link. This is not set up on open on hover.

Here is my site Read-Only:

Regards Paul

Most bizarre