Tag along bike hitch missing (Kenton NE3)

Hi, this is a Weeride Tagalong Kazam Link Pro Trailer Bike. It has been well used (age 5 to age 7 for my child). The hitch, which you can see in the 2nd photo has been misplaced somewhere (it will turn up but I don’t know when) so you may need to source your own. The flag, is also half height, so you could replace the black pole.