How can i get rid of the ghost in my daughters room they scare her..?

when my other daught was sleeping in the room down stairs she said there was a gohst in there so i said the lords pray and asked them to leave I had to move her to a differnt room for her to sleep in her own room so now i sleep in there.so i moved her upstairs and i have a nother daught that sleeping in the same room as my other daughter did and now she says there are 3 of them and they come throw the wall and they go under her bed.she wont sleep in there i guess the one little boy told her he was going to eat her bed.both of my girls are scared of the basement ...