diff --git a/src/components/popups/popupNote/component.tsx b/src/components/popups/popupNote/component.tsx
index de3fb32d..c9067078 100644
--- a/src/components/popups/popupNote/component.tsx
+++ b/src/components/popups/popupNote/component.tsx
@@ -171,8 +171,8 @@ class PopupNote extends React.Component<PopupNoteProps, PopupNoteState> {
         let noteSyncManager = new NoteSyncManager(
           DatabaseService,
           ConfigService,
-          window.electronAPI.fs,
-          window.electronAPI.path
+          window.electronAPI?.fs,
+          window.electronAPI?.path
         );
         noteSyncManager.syncNote(note, bookKey);
       });
diff --git a/src/containers/lists/navList/component.tsx b/src/containers/lists/navList/component.tsx
index 055b3991..ee16f613 100644
--- a/src/containers/lists/navList/component.tsx
+++ b/src/containers/lists/navList/component.tsx
@@ -143,6 +143,8 @@ class NavList extends React.Component<NavListProps, NavListState> {
 
   handleCompositionStart = () => {
     this.setState({ isComposing: true });
+    ConfigService.setReaderConfig("isTempLocked", "yes");
+    ConfigService.setReaderConfig("isNavLocked", "yes");
   };
 
   handleCompositionEnd = (event: React.CompositionEvent<HTMLInputElement>) => {
@@ -150,6 +152,10 @@ class NavList extends React.Component<NavListProps, NavListState> {
     this.setState({ isComposing: false, searchKeyword: keyword }, () => {
       this.handleSearch(keyword);
     });
+    if (ConfigService.getReaderConfig("isTempLocked") === "yes") {
+      ConfigService.setReaderConfig("isNavLocked", "");
+      ConfigService.setReaderConfig("isTempLocked", "");
+    }
   };
 
   async handleJump(cfi: string) {
diff --git a/src/utils/reader/noteUtil.ts b/src/utils/reader/noteUtil.ts
index 7931ac07..b73d6c2a 100644
--- a/src/utils/reader/noteUtil.ts
+++ b/src/utils/reader/noteUtil.ts
@@ -85,8 +85,8 @@ export async function createHighlight(params: DigestParams): Promise<void> {
   let noteSyncManager = new NoteSyncManager(
     DatabaseService,
     ConfigService,
-    window.electronAPI.fs,
-    window.electronAPI.path
+    window.electronAPI?.fs,
+    window.electronAPI?.path
   );
   noteSyncManager.syncNote(highlight, bookKey);
   onSuccess?.();