Three episodes need to be deleted from TV series The Gallows Pole

TV series The Gallows Pole tt14676562 has three episodes: https://www.bbc.co.uk/programmes/m001mg3k/episodes/player (programme distributor's listing) and https://www.radiotimes.com/tv/drama/the-gallows-pole-bbc-release/ "The Gallows Pole started airing on BBC Two on Wednesday 31st May at 9pm, with all three episodes landing at the same time on BBC iPlayer."

Can an admin please delete episodes 1.4, 1.5 and 1.6 (tt27674828, tt27674832 and tt27674845) which don't exist. Someone has evidently submitted them in error.