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Help with Tabs in v6.2.2

Using Foundation 6.2.2 on an existing site I came across a tabs section that no longer works. It used to work just fine, but now nothing. I'm thinking I should just upgrade to the latest version but don't know how much work that will take to convert. Are there steps on how to upgrade from 6.2.2? Any help would be greatly appreciated as I'm not too familiar with Foundation.

Page where tabs aren't working:

https://mapescanopies.com/color-preview-tool/

Foundation 6.2.2tabs

Using Foundation 6.2.2 on an existing site I came across a tabs section that no longer works. It used to work just fine, but now nothing. I'm thinking I should just upgrade to the latest version but don't know how much work that will take to convert. Are there steps on how to upgrade from 6.2.2? Any help would be greatly appreciated as I'm not too familiar with Foundation.

Page where tabs aren't working:

https://mapescanopies.com/color-preview-tool/