screen messed up

adding the third row, pushes the menu down. Tried different length, changing products, but whatever I do, adding something in the third row, messes up the screen.
working with 3 items in a row:

[lgc_column grid=”33″ tablet_grid=”33″ mobile_grid=”100″ equal_heights=”true”][/lgc_column]
[lgc_column grid=”33″ tablet_grid=”33″ mobile_grid=”100″ equal_heights=”true”][/lgc_column]
[lgc_column grid=”33″ tablet_grid=”33″ mobile_grid=”100″ equal_heights=”true” last=”true”]
[/lgc_column]

The page I need help with: [log in to see the link]