Feral Heart

ok so i was trying to use the ficho tunnel terrain for a map i was making but when i typed it in the terrain place my game crashed. i went back on but it showed the introduction page but when it was about to show the log in page it crashed and this kept on happening so i uninstalled feral heart and reinstalled it. when i went on it the ground texture was all african grass! so i uninstalled and reinstalled it again but it still had the african grass! and when i tryed to create a map it was all african grass! i still have all the textures but it shows up as african grass >.< please help me!