Not a bug that keeps me from making observations, just a link that’s off.
On any particular “About” page for a species, under the Status tab, there’s the section called “Establishment Means”. Over on the right sidebar, there’s a short blurb that defines what establishment means describes, and there’s a link for users to click to explore more about establishment means. This link directs to the Wikipedia page on Conservation Status, which is not the page for invasive, non-native, or introduced species.
I assume it was just a formatting mixup when the About pages were designed, but I imagine it’s a quick fix. I’ve attached a photo of the link-in-question above.