diff --git a/Chat/backend/server.js b/Chat/backend/server.js
index f03e5afe..9f755327 100644
--- a/Chat/backend/server.js
+++ b/Chat/backend/server.js
@@ -289,8 +289,16 @@ server.listen(PORT, '0.0.0.0', async () => {
   console.log(`[SYSTEM] Frontend URL: ${FRONTEND_URL}`);
 
   // Jobs
-  // TODO: Migrate cleanupExpiredBans to support PostgreSQL
-  // cleanupExpiredBans();
+  console.log('[STARTUP] Initializing scheduled jobs...');
+  cleanupExpiredBans().then(count => {
+    if (count > 0) console.log(`[JOBS] Cleaned up ${count} expired bans.`);
+  });
+
+  // Run cleanup every 12 hours
+  setInterval(async () => {
+    const count = await cleanupExpiredBans();
+    if (count > 0) console.log(`[JOBS] Periodic cleanup: Removed ${count} expired bans.`);
+  }, 12 * 60 * 60 * 1000);
 
   // Start PC Controller Service
   import('./services/pcControllerService.js').then(service => {
diff --git a/Chat/backend/utils/moderation.js b/Chat/backend/utils/moderation.js
index 9d943f9d..f9ad1e83 100644
--- a/Chat/backend/utils/moderation.js
+++ b/Chat/backend/utils/moderation.js
@@ -259,17 +259,24 @@ export async function resolveAppeal(appealId, status, adminNote) {
 
 /**
  * Cron: Cleanup
+ * Removes bans that have reached their expiration date.
  */
 export async function cleanupExpiredBans() {
-  const now = Date.now();
-  const info = await prisma.ban.deleteMany({
+  try {
+    const now = BigInt(Date.now());
+    const info = await prisma.ban.deleteMany({
       where: {
-          until: { not: null, lt: now } // Check if 'not: null' is valid in prisma? Yes. But schema defines optional.
-          // BigInt vs Int conflict might happen if 'until' in DB is BigInt.
-          // I pass 'now' (number/double). Prisma usually handles mapping if schema is BigInt.
+        until: {
+          not: null,
+          lt: now
+        }
       }
-  });
-  return info.count;
+    });
+    return info.count;
+  } catch (e) {
+    console.error('[MODERATION] cleanupExpiredBans error:', e);
+    return 0;
+  }
 }
 
 export async function getModerationLogs() {