My website is created with Gallery 1 having problem with format in some of my drop down menus

My website address is www.dariasaccents.com All of the categories at the tops of the page contain albums of photos of products I sell on my website. The following categories are corrupted with a strange format that contains all of my catgories. For example, under:

"Home Things" Antique canvas things"
"Favors" Ornaments and things
"Themes" Seasonal things

For some reason this strange configuration keeps popping up in various locations of my website
When you enter something in the product search, for example, invitations, the same configuration comes up but with item I was searching for.
The only way to understand this is to actually go into my website and see what I am talking about.
I really need some help. I am not a website designer so I need some simple directions on how to fix the problem.
Thanks