diff --git a/designer-base/src/main/java/com/fr/design/data/datapane/connect/ConnectionListPane.java b/designer-base/src/main/java/com/fr/design/data/datapane/connect/ConnectionListPane.java
index 63a4a47cb..1ba3de933 100644
--- a/designer-base/src/main/java/com/fr/design/data/datapane/connect/ConnectionListPane.java
+++ b/designer-base/src/main/java/com/fr/design/data/datapane/connect/ConnectionListPane.java
@@ -1,5 +1,6 @@
 package com.fr.design.data.datapane.connect;
 
+import com.fr.data.driver.DriverClassNotFoundException;
 import com.fr.data.impl.Connection;
 import com.fr.data.impl.JDBCDatabaseConnection;
 import com.fr.data.impl.JNDIDatabaseConnection;
@@ -221,6 +222,8 @@ public class ConnectionListPane extends JListControlPane implements ConnectionSh
             Connection connection = entry.getValue();
             try {
                 DataOperator.getInstance().validateConnectionSettings(connection);
+            } catch (DriverClassNotFoundException e) {
+                FineLoggerFactory.getLogger().info(e.getMessage());
             } catch (SQLException e) {
                 throw new SQLException(Toolkit.i18nText("Fine-Design_Basic_Database_Connection_Invalid_Config", entry.getKey()) + ", " + e.getMessage(), e.getCause());
             }
diff --git a/designer-base/src/main/java/com/fr/design/mainframe/share/collect/ComponentSender.java b/designer-base/src/main/java/com/fr/design/mainframe/share/collect/ComponentSender.java
index 5043e5fb7..8941cfba8 100644
--- a/designer-base/src/main/java/com/fr/design/mainframe/share/collect/ComponentSender.java
+++ b/designer-base/src/main/java/com/fr/design/mainframe/share/collect/ComponentSender.java
@@ -17,13 +17,7 @@ public class ComponentSender {
     private static final String CLOUD_REUSE_URL = "https://cloud.fanruan.com/api/monitor/record_of_reusePlugin/single";
     
     public static boolean send() {
-    
-        long start = System.currentTimeMillis();
-    
         String content = ComponentCollector.getInstance().generateTotalInfo();
-    
-        long end = System.currentTimeMillis();
-        FineLoggerFactory.getLogger().error("cal time cost {} ms", end - start);
         return sendInfo(CLOUD_REUSE_URL, content);
     }