Whenever I try to launch this mod I'm hit with these error messages (shown below). I've tried disabling all other mods except for the required ones and that didn't fix it. Would appreciate advice on how to fix this.

Exception in thread "Thread-3" 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:47)
at com.evacipated.cardcrawl.modthespire.Loader.runMods(Loader.java:501)
at com.evacipated.cardcrawl.modthespire.ui.ModSelectWindow.lambda$null$1(ModSelectWindow.java:285)
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:143)
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:127)
... 7 more