Need help fixing my nav

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The tabs drop down when you click on them and then go back up again when you click on them again. The problem is I have a sub nav that appears when you click on the tab. If you click on one of the sub nav items instead of just the tab itself then you get problems. Basically it will take 2 mouse clicks to bring the tab back down again instead of one. I’m not even sure if any of that made any sense. I’ve been staring at the AS for hours. If anyone could help I’d really appreciate it.