I noticed this yesterday when I was out. The Happy Wanderer, a German-themed restaurant on Stanley Avenue is for sale. This could have been for sale for a while, I don’t know. My best guess is it was back in June or July, based on the dates on recent reviews.
I’ve never been, but the reviews I’ve read online were always very complimentary. It appears to be closed. A reviewer on Google Maps said that they were “closed by receivers”, as does the sign (“court appointed receiver”).