When sharing the front-end of your base via link, you get to this menu:
Originally, it says “Enable Shared Base Link” and there is that off/on slider. When you set it to on, it changes to “Disable shared base link”, which doesn’t make sense for a slider - the slider is indicative of “Enable Shared Base Link” being true or false. What the above picture looks like is that I’ve Disabled share base link, since that is the function and it is set to true via the slider. This is not true, as when the slider is on, my Base link is functional.
If you wanted to keep the current format, you would want to change it to a button, not an on/off interface.