diff --git a/src/main/java/indi/bookmarkx/RootWindowFactory.java b/src/main/java/indi/bookmarkx/RootWindowFactory.java
index f8cf128..85d5f91 100644
--- a/src/main/java/indi/bookmarkx/RootWindowFactory.java
+++ b/src/main/java/indi/bookmarkx/RootWindowFactory.java
@@ -1,5 +1,6 @@
 package indi.bookmarkx;
 
+import com.intellij.openapi.project.DumbAware;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.wm.ToolWindow;
 import com.intellij.openapi.wm.ToolWindowFactory;
@@ -13,7 +14,7 @@
 import java.util.Arrays;
 
 
-public class RootWindowFactory implements ToolWindowFactory {
+public class RootWindowFactory implements ToolWindowFactory, DumbAware {
 
     /**
      * plugin.xml 文件中的 key 名
diff --git a/src/main/java/indi/bookmarkx/common/data/ArrayListTable.java b/src/main/java/indi/bookmarkx/common/data/ArrayListTable.java
index 99d77f8..e1f8f98 100644
--- a/src/main/java/indi/bookmarkx/common/data/ArrayListTable.java
+++ b/src/main/java/indi/bookmarkx/common/data/ArrayListTable.java
@@ -29,7 +29,7 @@ protected void addColumIndex(Function<T, Object> function) {
         SimpleColumnIndex<Set<T>> index = new SimpleColumnIndex<>();
         dataList.forEach(data -> {
             try {
-                saveHunt(data, function, (SimpleColumnIndex<Set<T>>) index);
+                saveHunt(data, function, index);
             }catch (Exception ignored) {
 
             }
diff --git a/src/main/java/indi/bookmarkx/common/data/BookmarkArrayListTable.java b/src/main/java/indi/bookmarkx/common/data/BookmarkArrayListTable.java
index 9f7e678..b433651 100644
--- a/src/main/java/indi/bookmarkx/common/data/BookmarkArrayListTable.java
+++ b/src/main/java/indi/bookmarkx/common/data/BookmarkArrayListTable.java
@@ -61,6 +61,7 @@ private List<BookmarkNodeModel> treeToList(BookmarkTree bookmarkTree,List<Bookma
         }
         toList(bookmarkTreeNode, list);
         return list;
+
     }
 
     private static void toList(BookmarkTreeNode node, List<BookmarkNodeModel> list) {
diff --git a/src/main/java/indi/bookmarkx/model/BookmarkConverter.java b/src/main/java/indi/bookmarkx/model/BookmarkConverter.java
index 78befbe..29534aa 100644
--- a/src/main/java/indi/bookmarkx/model/BookmarkConverter.java
+++ b/src/main/java/indi/bookmarkx/model/BookmarkConverter.java
@@ -1,5 +1,6 @@
 package indi.bookmarkx.model;
 
+import com.intellij.openapi.diagnostic.Logger;
 import com.intellij.openapi.fileEditor.OpenFileDescriptor;
 import com.intellij.openapi.fileTypes.FileType;
 import com.intellij.openapi.project.Project;
@@ -13,9 +14,11 @@
  */
 public class BookmarkConverter {
 
+    private static final Logger log = Logger.getInstance(BookmarkConverter.class);
+
     public static BookmarkPO convertToPO(AbstractTreeNodeModel model) {
 
-        if (model instanceof BookmarkNodeModel) {
+        if (model instanceof BookmarkNodeModel && model.isBookmark()) {
             BookmarkNodeModel nodeModel = (BookmarkNodeModel) model;
 
             BookmarkPO po = new BookmarkPO();
@@ -27,8 +30,13 @@ public static BookmarkPO convertToPO(AbstractTreeNodeModel model) {
             po.setDesc(nodeModel.getDesc());
             po.setBookmark(true);
 
-            VirtualFile file = nodeModel.getOpenFileDescriptor().getFile();
-            po.setVirtualFilePath(file.getPath());
+            OpenFileDescriptor fileDescriptor = nodeModel.getOpenFileDescriptor();
+            if (null != fileDescriptor) {
+                VirtualFile file = fileDescriptor.getFile();
+                po.setVirtualFilePath(file.getPath());
+            } else {
+                log.warn(String.format("%s指向的位置已不存在", nodeModel.getName()));
+            }
             return po;
         } else {
             GroupNodeModel nodeModel = (GroupNodeModel) model;
diff --git a/src/main/java/indi/bookmarkx/ui/pannel/BookmarksManagePanel.java b/src/main/java/indi/bookmarkx/ui/pannel/BookmarksManagePanel.java
index 199b193..f0f7256 100644
--- a/src/main/java/indi/bookmarkx/ui/pannel/BookmarksManagePanel.java
+++ b/src/main/java/indi/bookmarkx/ui/pannel/BookmarksManagePanel.java
@@ -113,7 +113,7 @@ class TreeLoadTask extends Task.Backgroundable {
         private DefaultTreeModel treeModel;
 
         public TreeLoadTask(Project project, BookmarkTree tree) {
-            super(project, "Loading Tree Data");
+            super(project, "Loading tree data");
             this.project = project;
             this.tree = tree;
         }