diff --git a/sync/index.js b/sync/index.js
index a88996869..3612b5d86 100644
--- a/sync/index.js
+++ b/sync/index.js
@@ -186,8 +186,6 @@ function* checkSyncStatus() {
   var lastSyncTime;
   if (config.syncModel === 'all') {
     lastSyncTime = total.last_sync_time;
-  } else if (config.syncModel === 'exist') {
-    lastSyncTime = total.last_exist_sync_time;
   }
   debug('checkSyncStatus start, lastSyncTime: %s, syncInterval: %s', lastSyncTime, syncInterval);
   if (!lastSyncTime) {
@@ -197,7 +195,7 @@ function* checkSyncStatus() {
   var oneDay = 3600000 * 24;
   if (diff > oneDay) {
     var err = new Error('Last sync time is expired in ' + diff + ' ms, lastSyncTime: ' + new Date(lastSyncTime));
-    err.name = 'SyncExpriedError';
+    err.name = 'SyncExpiredError';
     sendMailToAdmin(err, null, new Date());
   }
 }