Apologies if you did this but you need to hold down CTRL to highlight both options on the settings:
Home / ▶︎ Site administration / ▶︎ Plugins / ▶︎ Activity modules / ▶︎ Page.
Home / ▶︎ Site administration / ▶︎ Plugins / ▶︎ Activity modules / ▶︎ Page.
Hope this helps,
Dave
Dave