I cannot create a new vault on macOS Mojave

I have Cryptomator 1.4 installed on macOS Mojave. When I click the plus to create a new vault, go to the directory and type in the name, then nothing happens. Cryptomator does not ask for a password nor is there any new vault shown in the left sidebar. It seems to be some kind of Java error or an unknown source, but I don’t know what that means. The output from ~/Library/Logs/Cryptomator/cryptomator.log is below:

24:46.565 [main] INFO  org.cryptomator.launcher.Cryptomator - Starting Cryptomator 1.4.0 on Mac OS X 10.14.2 (x86_64)
09:24:47.464 [JavaFX Application Thread] INFO  o.c.launcher.MainApplication - JavaFX application started.
09:24:47.577 [JavaFX Application Thread] INFO  o.c.common.settings.SettingsProvider - Settings loaded from /Users/mike/Library/Application Support/Cryptomator/settings.json
09:24:47.579 [JavaFX Application Thread] DEBUG org.cryptomator.logging.DebugMode - Debug mode initialized
09:24:47.587 [JavaFX Application Thread] DEBUG org.cryptomator.ui.l10n.Localization - Loaded localization default file: /localization/en.txt
09:24:47.588 [JavaFX Application Thread] DEBUG org.cryptomator.ui.l10n.Localization - Detected language "en" and region "US"
09:24:47.596 [JavaFX Application Thread] TRACE org.cryptomator.ui.l10n.Localization - Attempting to load localization from: /localization/en_US.txt
09:24:47.597 [JavaFX Application Thread] TRACE org.cryptomator.ui.l10n.Localization - Attempting to load localization from: /localization/en.txt
09:24:47.663 [JavaFX Application Thread] INFO  org.cryptomator.jni.JniModule - loaded libMacFunctions.dylib
09:24:49.816 [JavaFX Application Thread] INFO  o.c.ui.controllers.WelcomeController - Current version: 1.4.0, lastest version: 1.4.0
09:25:36.295 [JavaFX Application Thread] ERROR o.c.ui.controllers.MainController - Unable to create vault
java.nio.file.AccessDeniedException: /Volumes/Data/Mike_Backup/DATA-FILES/MORE_DATA_FILES
	at java.base/sun.nio.fs.UnixException.translateToIOException(Unknown Source)
	at java.base/sun.nio.fs.UnixException.rethrowAsIOException(Unknown Source)
	at java.base/sun.nio.fs.UnixException.rethrowAsIOException(Unknown Source)
	at java.base/sun.nio.fs.UnixFileSystemProvider.createDirectory(Unknown Source)
	at java.base/java.nio.file.Files.createDirectory(Unknown Source)
	at org.cryptomator.ui.controllers.MainController.didClickCreateNewVault(MainController.java:308)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.base/java.lang.reflect.Method.invoke(Unknown Source)
	at com.sun.javafx.reflect.Trampoline.invoke(Unknown Source)
	at jdk.internal.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.base/java.lang.reflect.Method.invoke(Unknown Source)
	at javafx.base/com.sun.javafx.reflect.MethodUtil.invoke(Unknown Source)
	at javafx.fxml/com.sun.javafx.fxml.MethodHelper.invoke(Unknown Source)
	at javafx.fxml/javafx.fxml.FXMLLoader$MethodHandler.invoke(Unknown Source)
	at javafx.fxml/javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(Unknown Source)
	at javafx.base/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.EventUtil.fireEventImpl(Unknown Source)
	at javafx.base/com.sun.javafx.event.EventUtil.fireEvent(Unknown Source)
	at javafx.base/javafx.event.Event.fireEvent(Unknown Source)
	at javafx.controls/javafx.scene.control.MenuItem.fire(Unknown Source)
	at javafx.controls/com.sun.javafx.scene.control.ContextMenuContent$MenuItemContainer.doSelect(Unknown Source)
	at javafx.controls/com.sun.javafx.scene.control.ContextMenuContent$MenuItemContainer.lambda$createChildren$12(Unknown Source)
	at javafx.base/com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.EventUtil.fireEventImpl(Unknown Source)
	at javafx.base/com.sun.javafx.event.EventUtil.fireEvent(Unknown Source)
	at javafx.base/javafx.event.Event.fireEvent(Unknown Source)
	at javafx.graphics/javafx.scene.Scene$MouseHandler.process(Unknown Source)
	at javafx.graphics/javafx.scene.Scene$MouseHandler.access$1300(Unknown Source)
	at javafx.graphics/javafx.scene.Scene.processMouseEvent(Unknown Source)
	at javafx.graphics/javafx.scene.Scene$ScenePeerListener.mouseEvent(Unknown Source)
	at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(Unknown Source)
	at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(Unknown Source)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$2(Unknown Source)
	at javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(Unknown Source)
	at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(Unknown Source)
	at javafx.graphics/com.sun.glass.ui.View.handleMouseEvent(Unknown Source)
	at javafx.graphics/com.sun.glass.ui.View.notifyMouse(Unknown Source)
	at javafx.graphics/com.sun.glass.ui.mac.MacView.notifyMouse(Unknown Source)
09:26:30.629 [JavaFX Application Thread] ERROR o.c.ui.controllers.MainController - Unable to create vault
java.nio.file.AccessDeniedException: /Volumes/Data/Mike_Backup/DATA-FILES/MORE_DATA_FILES
	at java.base/sun.nio.fs.UnixException.translateToIOException(Unknown Source)
	at java.base/sun.nio.fs.UnixException.rethrowAsIOException(Unknown Source)
	at java.base/sun.nio.fs.UnixException.rethrowAsIOException(Unknown Source)
	at java.base/sun.nio.fs.UnixFileSystemProvider.createDirectory(Unknown Source)
	at java.base/java.nio.file.Files.createDirectory(Unknown Source)
	at org.cryptomator.ui.controllers.MainController.didClickCreateNewVault(MainController.java:308)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.base/java.lang.reflect.Method.invoke(Unknown Source)
	at com.sun.javafx.reflect.Trampoline.invoke(Unknown Source)
	at jdk.internal.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.base/java.lang.reflect.Method.invoke(Unknown Source)
	at javafx.base/com.sun.javafx.reflect.MethodUtil.invoke(Unknown Source)
	at javafx.fxml/com.sun.javafx.fxml.MethodHelper.invoke(Unknown Source)
	at javafx.fxml/javafx.fxml.FXMLLoader$MethodHandler.invoke(Unknown Source)
	at javafx.fxml/javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(Unknown Source)
	at javafx.base/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.EventUtil.fireEventImpl(Unknown Source)
	at javafx.base/com.sun.javafx.event.EventUtil.fireEvent(Unknown Source)
	at javafx.base/javafx.event.Event.fireEvent(Unknown Source)
	at javafx.controls/javafx.scene.control.MenuItem.fire(Unknown Source)
	at javafx.controls/com.sun.javafx.scene.control.ContextMenuContent$MenuItemContainer.doSelect(Unknown Source)
	at javafx.controls/com.sun.javafx.scene.control.ContextMenuContent$MenuItemContainer.lambda$createChildren$12(Unknown Source)
	at javafx.base/com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
	at javafx.base/com.sun.javafx.event.EventUtil.fireEventImpl(Unknown Source)
	at javafx.base/com.sun.javafx.event.EventUtil.fireEvent(Unknown Source)
	at javafx.base/javafx.event.Event.fireEvent(Unknown Source)
	at javafx.graphics/javafx.scene.Scene$MouseHandler.process(Unknown Source)
	at javafx.graphics/javafx.scene.Scene$MouseHandler.access$1300(Unknown Source)
	at javafx.graphics/javafx.scene.Scene.processMouseEvent(Unknown Source)
	at javafx.graphics/javafx.scene.Scene$ScenePeerListener.mouseEvent(Unknown Source)
	at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(Unknown Source)
	at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(Unknown Source)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$2(Unknown Source)
	at javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(Unknown Source)
	at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(Unknown Source)
	at javafx.graphics/com.sun.glass.ui.View.handleMouseEvent(Unknown Source)
	at javafx.graphics/com.sun.glass.ui.View.notifyMouse(Unknown Source)
	at javafx.graphics/com.sun.glass.ui.mac.MacView.notifyMouse(Unknown Source)
java.nio.file.AccessDeniedException: /Volumes/Data/Mike_Backup/DATA-FILES/MORE_DATA_FILES

It seems like you or at least Cryptomator does not have access rights to write to the specific location.