Dear Forum manager,

I want to report a seeming bug of forum software. When I click one user of this forum, the page that come up will display the user's basic information, etc.. When I click the "Activities" and want to subscribe him/her, forum software will jump to the main page of forum. And the website address suggests https://www.statalist.org/forums/#activities-tab. My browser is Firefox Browser 72.0.2 (64-bit) and other browsers have the same question.