diff --git a/lib/modules/manga/detail/providers/state_providers.dart b/lib/modules/manga/detail/providers/state_providers.dart
index 28db4dd..6d2630f 100644
--- a/lib/modules/manga/detail/providers/state_providers.dart
+++ b/lib/modules/manga/detail/providers/state_providers.dart
@@ -86,7 +86,11 @@ class SortChapterState extends _$SortChapterState {
         .sortChapterList!
         .where((element) => element.mangaId == mangaId)
         .toList()
-        .first;
+        .firstOrNull ?? SortChapter(
+          mangaId: mangaId,
+          index: 1,
+          reverse: false,
+        );
   }
 
   void update(bool reverse, int index) {
@@ -128,12 +132,15 @@ class ChapterFilterDownloadedState extends _$ChapterFilterDownloadedState {
   }
 
   int getType() {
-    return isar.settings
+    return (isar.settings
         .getSync(227)!
         .chapterFilterDownloadedList!
         .where((element) => element.mangaId == mangaId)
         .toList()
-        .first
+        .firstOrNull ?? ChapterFilterDownloaded(
+          mangaId: mangaId,
+          type: 0,
+        ))
         .type!;
   }
 
@@ -177,12 +184,15 @@ class ChapterFilterUnreadState extends _$ChapterFilterUnreadState {
   }
 
   int getType() {
-    return isar.settings
+    return (isar.settings
         .getSync(227)!
         .chapterFilterUnreadList!
         .where((element) => element.mangaId == mangaId)
         .toList()
-        .first
+        .firstOrNull ?? ChapterFilterUnread(
+          mangaId: mangaId,
+          type: 0,
+        ))
         .type!;
   }
 
@@ -225,12 +235,15 @@ class ChapterFilterBookmarkedState extends _$ChapterFilterBookmarkedState {
   }
 
   int getType() {
-    return isar.settings
+    return (isar.settings
         .getSync(227)!
         .chapterFilterBookmarkedList!
         .where((element) => element.mangaId == mangaId)
         .toList()
-        .first
+        .firstOrNull ?? ChapterFilterBookmarked(
+          mangaId: mangaId,
+          type: 0,
+        ))
         .type!;
   }
 
diff --git a/lib/modules/manga/reader/providers/reader_controller_provider.dart b/lib/modules/manga/reader/providers/reader_controller_provider.dart
index 708bdd4..1754680 100644
--- a/lib/modules/manga/reader/providers/reader_controller_provider.dart
+++ b/lib/modules/manga/reader/providers/reader_controller_provider.dart
@@ -417,35 +417,48 @@ extension ChapterExtensions on Chapter {
 extension MangaExtensions on Manga {
   List<Chapter> getFilteredChapterList() {
     final data = this.chapters.toList().reversed.toList();
-    final filterUnread = isar.settings
+    final filterUnread = (isar.settings
         .getSync(227)!
         .chapterFilterUnreadList!
         .where((element) => element.mangaId == id)
         .toList()
-        .first
+        .firstOrNull ?? ChapterFilterUnread(
+          mangaId: id,
+          type: 0,
+        ))
         .type!;
 
-    final filterBookmarked = isar.settings
+    final filterBookmarked = (isar.settings
         .getSync(227)!
         .chapterFilterBookmarkedList!
         .where((element) => element.mangaId == id)
         .toList()
-        .first
+        .firstOrNull ?? ChapterFilterBookmarked(
+          mangaId: id,
+          type: 0,
+        ))
         .type!;
-    final filterDownloaded = isar.settings
+    final filterDownloaded = (isar.settings
         .getSync(227)!
         .chapterFilterDownloadedList!
         .where((element) => element.mangaId == id)
         .toList()
-        .first
+        .firstOrNull ?? ChapterFilterDownloaded(
+          mangaId: id,
+          type: 0,
+        ))
         .type!;
 
-    final sortChapter = isar.settings
+    final sortChapter = (isar.settings
         .getSync(227)!
         .sortChapterList!
         .where((element) => element.mangaId == id)
         .toList()
-        .first
+        .firstOrNull ?? SortChapter(
+          mangaId: id,
+          index: 1,
+          reverse: false,
+        ))
         .index;
     final filterScanlator = _getFilterScanlator(this) ?? [];
     List<Chapter>? chapterList;
diff --git a/lib/services/sync_server.dart b/lib/services/sync_server.dart
index f8ff15f..f026457 100644
--- a/lib/services/sync_server.dart
+++ b/lib/services/sync_server.dart
@@ -488,6 +488,9 @@ class SyncServer extends _$SyncServer {
           if (settings != null) {
             isar.settings.putAllSync(settings);
           }
+          if (isar.settings.getSync(227) == null) {
+            isar.settings.putSync(Settings(id: 227));
+          }
           isar.settings.putSync(
               isar.settings.getSync(227)!..syncAfterReading = syncAfterReading);
           isar.settings.putSync(