Plugin 'com.chrisrm.idea.MaterialThemeUI' failed to initialize and will be disabled.  Please restart IntelliJ IDEA.

java.lang.NoClassDefFoundError: org/json/JSONObject
    at java.lang.Class.getDeclaredMethods0(Native Method)
    at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
    at java.lang.Class.privateGetPublicMethods(Class.java:2902)
    at java.lang.Class.getMethods(Class.java:1615)
    at com.intellij.util.xmlb.BeanBinding.collectPropertyAccessors(BeanBinding.java:354)
    at com.intellij.util.xmlb.BeanBinding.getAccessors(BeanBinding.java:298)
    at com.intellij.util.xmlb.XmlSerializerUtil.copyBean(XmlSerializerUtil.java:17)
    at com.intellij.util.xmlb.XmlSerializerUtil.createCopy(XmlSerializerUtil.java:26)
    at com.chrisrm.idea.MTConfig.clone(MTConfig.java:223)
    at com.chrisrm.idea.wizard.MTWizardDialog.<init>(MTWizardDialog.java:57)
    at com.chrisrm.idea.MTApplicationComponent.initWizard(MTApplicationComponent.java:54)
    at com.chrisrm.idea.MTApplicationComponent.initComponent(MTApplicationComponent.java:71)
    at com.intellij.openapi.components.impl.ComponentManagerImpl$ComponentConfigComponentAdapter.getComponentInstance(ComponentManagerImpl.java:486)
    at com.intellij.openapi.components.impl.ComponentManagerImpl.createComponents(ComponentManagerImpl.java:104)
    at com.intellij.openapi.application.impl.ApplicationImpl.lambda$createComponents$9(ApplicationImpl.java:447)
    at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$2(CoreProgressManager.java:164)
    at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:582)
    at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:532)
    at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:87)
    at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:151)
    at com.intellij.openapi.application.impl.ApplicationImpl.createComponents(ApplicationImpl.java:471)
    at com.intellij.openapi.components.impl.ComponentManagerImpl.init(ComponentManagerImpl.java:88)
    at com.intellij.openapi.application.impl.ApplicationImpl.load(ApplicationImpl.java:405)
    at com.intellij.openapi.application.impl.ApplicationImpl.load(ApplicationImpl.java:391)
    at com.intellij.idea.IdeaApplication.run(IdeaApplication.java:208)
    at com.intellij.idea.IdeaApplication.lambda$initApplication$0(IdeaApplication.java:74)
    at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:762)
    at java.awt.EventQueue.access$500(EventQueue.java:98)
    at java.awt.EventQueue$3.run(EventQueue.java:715)
    at java.awt.EventQueue$3.run(EventQueue.java:709)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:732)
    at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:342)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
Caused by: java.lang.ClassNotFoundException: org.json.JSONObject PluginClassLoader[com.chrisrm.idea.MaterialThemeUI, 3.4.1.1] com.intellij.ide.plugins.cl.PluginClassLoader@56211fce
    at com.intellij.ide.plugins.cl.PluginClassLoader.loadClass(PluginClassLoader.java:49)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 41 more