Mixed up episodes of a german TV show

Hi, for the series "Die dreisten Drei" https://www.imdb.com/de/title/tt0409550 there are some episodes too much, they are doubled: https://www.imdb.com/de/title/tt0566309/reference/ is the duplicate of https://www.imdb.com/de/title/tt28865350/reference/ https://www.imdb.com/de/title/tt0566310/reference/ is the duplicate of https://www.imdb.com/de/title/tt28865353/reference/ https://www.imdb.com/de/title/tt0935346/reference/ is the duplicate of https://www.imdb.com/de/title/tt28865392/reference/ https://www.imdb.com/de/title/tt0941453/reference/ is the duplicate of https://www.imdb.com/de/title/tt28865393/reference/ these episodes should be merged. best.