diff --git a/src/main/java/me/kavin/piped/utils/CookieHandler.java b/src/main/java/me/kavin/piped/utils/CookieHandler.java
deleted file mode 100644
index 2153f12..0000000
--- a/src/main/java/me/kavin/piped/utils/CookieHandler.java
+++ /dev/null
@@ -1,21 +0,0 @@
-package me.kavin.piped.utils;
-
-import java.io.IOException;
-import java.net.URI;
-import java.util.List;
-import java.util.Map;
-
-public class CookieHandler extends java.net.CookieHandler {
-
-    @Override
-    public Map<String, List<String>> get(URI uri, Map<String, List<String>> requestHeaders) throws IOException {
-        // TODO Auto-generated method stub
-        return null;
-    }
-
-    @Override
-    public void put(URI uri, Map<String, List<String>> responseHeaders) throws IOException {
-        // TODO Auto-generated method stub
-
-    }
-}
diff --git a/src/main/java/me/kavin/piped/utils/ResponseHelper.java b/src/main/java/me/kavin/piped/utils/ResponseHelper.java
index 9f2220d..bbbba33 100644
--- a/src/main/java/me/kavin/piped/utils/ResponseHelper.java
+++ b/src/main/java/me/kavin/piped/utils/ResponseHelper.java
@@ -982,6 +982,8 @@ public class ResponseHelper {
                         s.update(user);
                         tr.commit();
                     }
+                } catch (Exception e) {
+                    ExceptionHandler.handle(e);
                 }
             });
 
@@ -996,6 +998,8 @@ public class ResponseHelper {
                                             .findFirst().isEmpty()
                             )
                             .forEach(channelId -> Multithreading.runAsyncLimited(() -> saveChannel(channelId)));
+                } catch (Exception e) {
+                    ExceptionHandler.handle(e);
                 }
             });
 
@@ -1417,10 +1421,12 @@ public class ResponseHelper {
         var channel = new me.kavin.piped.utils.obj.db.Channel(channelId, info.getName(),
                 info.getAvatarUrl(), info.isVerified());
 
-        try (Session s = DatabaseSessionFactory.createSession()) {
+        try (StatelessSession s = DatabaseSessionFactory.createStatelessSession()) {
             var tr = s.beginTransaction();
-            s.persist(channel);
+            s.insert(channel);
             tr.commit();
+        } catch (Exception e) {
+            ExceptionHandler.handle(e);
         }
 
         Multithreading.runAsync(() -> {