This mods seems so amazing, but I cannot start it, I get this error:

Exception in thread "Thread-4" java.lang.NoClassDefFoundError: javafx/util/Pair
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
at java.lang.Class.getDeclaredMethod(Class.java:2128)
at com.evacipated.cardcrawl.modthespire.Patcher.initializeMods(Patcher.java:42)
at com.evacipated.cardcrawl.modthespire.Loader.runMods(Loader.java:436)
at com.evacipated.cardcrawl.modthespire.ui.ModSelectWindow.lambda$null$1(ModSelectWindow.java:269)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.ClassNotFoundException: javafx.util.Pair
at com.evacipated.cardcrawl.modthespire.MTSClassLoader.findClass(MTSClassLoader.java:94)
at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
at com.evacipated.cardcrawl.modthespire.MTSClassLoader.loadClass(MTSClassLoader.java:78)
... 7 more


Can somebody help me out ?