Error while opening a new case

When I open a new case,app gives the same error every time and I dont really understand it.Can anyone help me with this?

java.lang.ExceptionInInitializerError: Exception java.lang.IllegalArgumentException: Cannot create PyString with non-byte value [in thread "Thread-5"]
	at org.python.core.PyString.<init>(PyString.java:57)
	at org.python.core.PyString.<init>(PyString.java:70)
	at org.python.core.PyString.<init>(PyString.java:74)
	at org.python.core.Py.newString(Py.java:643)
	at org.python.core.PyJavaType.init(PyJavaType.java:543)
	at org.python.core.PyType$Registry.createType(PyType.java:477)
	at org.python.core.PyType$Registry.addFromClass(PyType.java:426)
	at org.python.core.PyType$Registry.resolveType(PyType.java:352)
	at org.python.core.PyType$Registry$1.computeValue(PyType.java:208)
	at org.python.core.PyType$Registry$1.computeValue(PyType.java:202)
	at java.base/java.lang.ClassValue.getFromHashMap(ClassValue.java:228)
	at java.base/java.lang.ClassValue.getFromBackup(ClassValue.java:210)
	at java.base/java.lang.ClassValue.get(ClassValue.java:116)
	at org.python.core.PyType.fromClass(PyType.java:2137)
	at org.python.core.PyObject.<init>(PyObject.java:85)
	at org.python.core.PySingleton.<init>(PySingleton.java:9)
	at org.python.core.PyNotImplemented.<init>(PyNotImplemented.java:10)
	at org.python.core.Py.<clinit>(Py.java:66)
	at org.python.util.PythonInterpreter.<init>(PythonInterpreter.java:99)
	at org.python.util.PythonInterpreter.<init>(PythonInterpreter.java:93)
	at org.python.util.PythonInterpreter.<init>(PythonInterpreter.java:70)
	at org.sleuthkit.autopsy.python.JythonModuleLoader.getInterfaceImplementations(JythonModuleLoader.java:132)
	at org.sleuthkit.autopsy.python.JythonModuleLoader.getIngestModuleFactories(JythonModuleLoader.java:68)
	at org.sleuthkit.autopsy.core.Installer.lambda$preloadJython$0(Installer.java:415)
	at java.base/java.lang.Thread.run(Thread.java:833)
Caused: java.lang.NoClassDefFoundError: Could not initialize class org.python.core.Py
	at org.python.util.PythonInterpreter.<init>(PythonInterpreter.java:99)
	at org.python.util.PythonInterpreter.<init>(PythonInterpreter.java:93)
	at org.python.util.PythonInterpreter.<init>(PythonInterpreter.java:70)
	at org.sleuthkit.autopsy.python.JythonModuleLoader.getInterfaceImplementations(JythonModuleLoader.java:132)
	at org.sleuthkit.autopsy.python.JythonModuleLoader.getIngestModuleFactories(JythonModuleLoader.java:68)
	at org.sleuthkit.autopsy.ingest.IngestModuleFactoryLoader.getIngestModuleFactories(IngestModuleFactoryLoader.java:130)
	at org.sleuthkit.autopsy.ingest.IngestJobSettings.load(IngestJobSettings.java:355)
	at org.sleuthkit.autopsy.ingest.IngestJobSettings.<init>(IngestJobSettings.java:158)
	at org.sleuthkit.autopsy.ingest.IngestJobSettings.<init>(IngestJobSettings.java:133)
	at org.sleuthkit.autopsy.casemodule.AddImageWizardIngestConfigPanel.<init>(AddImageWizardIngestConfigPanel.java:59)
	at org.sleuthkit.autopsy.casemodule.AddImageWizardIterator.getPanels(AddImageWizardIterator.java:68)
	at org.sleuthkit.autopsy.casemodule.AddImageWizardIterator.current(AddImageWizardIterator.java:139)
	at org.sleuthkit.autopsy.casemodule.AddImageWizardIterator.current(AddImageWizardIterator.java:38)
	at org.openide.WizardDescriptor.updateStateOpen(WizardDescriptor.java:820)
	at org.openide.WizardDescriptor.updateState(WizardDescriptor.java:797)
	at org.openide.WizardDescriptor._updateState(WizardDescriptor.java:775)
	at org.openide.WizardDescriptor.initialize(WizardDescriptor.java:450)
	at org.openide.NotifyDescriptor.getterCalled(NotifyDescriptor.java:292)
	at org.openide.DialogDescriptor.isModal(DialogDescriptor.java:297)
	at org.netbeans.core.windows.services.NbDialog.<init>(NbDialog.java:42)
	at org.netbeans.core.windows.services.DialogDisplayerImpl$1.run(DialogDisplayerImpl.java:135)
	at org.netbeans.core.windows.services.DialogDisplayerImpl$1.run(DialogDisplayerImpl.java:96)
	at org.netbeans.modules.openide.util.NbMutexEventProvider$Event.doEventAccess(NbMutexEventProvider.java:123)
	at org.netbeans.modules.openide.util.NbMutexEventProvider$Event.readAccess(NbMutexEventProvider.java:77)
	at org.netbeans.modules.openide.util.LazyMutexImplementation.readAccess(LazyMutexImplementation.java:71)
	at org.openide.util.Mutex.readAccess(Mutex.java:199)
	at org.netbeans.core.windows.services.DialogDisplayerImpl.createDialog(DialogDisplayerImpl.java:96)
	at org.netbeans.core.windows.services.DialogDisplayerImpl.createDialog(DialogDisplayerImpl.java:88)
	at org.sleuthkit.autopsy.casemodule.AddImageAction.actionPerformed(AddImageAction.java:135)
	at org.sleuthkit.autopsy.casemodule.AddImageAction$1.actionPerformed(AddImageAction.java:106)
	at java.desktop/javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1972)
	at java.desktop/javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2313)
	at java.desktop/javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:405)
	at java.desktop/javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:262)
	at java.desktop/javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:279)
	at java.desktop/java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:297)
	at java.desktop/java.awt.Component.processMouseEvent(Component.java:6626)
	at java.desktop/javax.swing.JComponent.processMouseEvent(JComponent.java:3389)
	at java.desktop/java.awt.Component.processEvent(Component.java:6391)
	at java.desktop/java.awt.Container.processEvent(Container.java:2266)
	at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:5001)
	at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2324)
	at java.desktop/java.awt.Component.dispatchEvent(Component.java:4833)
	at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4948)
	at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Container.java:4575)
	at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Container.java:4516)
	at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2310)
	at java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2780)
	at java.desktop/java.awt.Component.dispatchEvent(Component.java:4833)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:773)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:722)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:716)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:97)
	at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:746)
	at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:744)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
	at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:743)
	at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:136)
[catch] at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
	at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)

Do you have any 3rd party plugins installed? If so try and remove then and then create a case.