practice spike plant/defuse/bot area

ok so i would ALWAYS use this to train with new agents/their abilities. (ex. clove, kj, astra, etc.) and i really miss that area bc i wanna practice with deadlock but i dont have enough kingdom credits (2k/8k). does anybody know if its still available anymore? all that remains is this door thing.... (first image is from google lol and the second one is mine)