diff --git a/common/command.py b/common/command.py
index 8d838198..4bd18249 100644
--- a/common/command.py
+++ b/common/command.py
@@ -189,7 +189,7 @@ def zip_dir(ssh_client, father_dir, zip_dir, stdio=None):
     Compress files through zip
     :return:
     """
-    cmd = "zip  {father_dir}/{zip_dir}.zip -rm {father_dir}/{zip_dir}".format(father_dir=father_dir, zip_dir=zip_dir)
+    cmd = "cd {father_dir} && zip {zip_dir}.zip -rm {zip_dir}".format(father_dir=father_dir, zip_dir=zip_dir)
     ssh_client.exec_cmd(cmd)
 
 
@@ -198,7 +198,7 @@ def zip_encrypt_dir(ssh_client, zip_password, father_dir, zip_dir, stdio=None):
     Compress files by encryption
     :return:
     """
-    cmd = "zip --password {zip_password} {father_dir}/{zip_dir}.zip -rm {father_dir}/{zip_dir}".format(zip_password=zip_password, father_dir=father_dir, zip_dir=zip_dir)
+    cmd = "cd {father_dir} && zip --password {zip_password} {zip_dir}.zip -rm {zip_dir}".format(zip_password=zip_password, father_dir=father_dir, zip_dir=zip_dir)
     ssh_client.exec_cmd(cmd)
 
 
diff --git a/common/ssh_client/remote_client.py b/common/ssh_client/remote_client.py
index d61c0821..3cb08197 100644
--- a/common/ssh_client/remote_client.py
+++ b/common/ssh_client/remote_client.py
@@ -87,6 +87,7 @@ def exec_cmd(self, cmd):
                     if len(stderr.read().decode('utf-8').strip()) > 0:
                         raise Exception(stderr.read().decode('utf-8'))
                 cmd = "sudo {0}".format(cmd)
+                cmd = cmd.replace("&&", "&& sudo ")
             self.stdio.verbose('Execute Shell command on server {0}:{1}'.format(self.host_ip, cmd))
             stdin, stdout, stderr = self._ssh_fd.exec_command(cmd)
             err_text = stderr.read()
diff --git a/handler/rca/rca_handler.py b/handler/rca/rca_handler.py
index 1fe3a14e..35be6529 100644
--- a/handler/rca/rca_handler.py
+++ b/handler/rca/rca_handler.py
@@ -175,13 +175,15 @@ def execute(self):
             self.rca_scene.execute()
         except RCANotNeedExecuteException as e:
             self.stdio.warn("rca_scene.execute not need execute: {0}".format(e))
-            return ObdiagResult(ObdiagResult.SERVER_ERROR_CODE, data="rca_scene.execute not need execute: {0}")
+            return ObdiagResult(ObdiagResult.SERVER_ERROR_CODE, data={"result": "rca_scene.execute not need execute"})
         except Exception as e:
-            raise Exception("rca_scene.execute err: {0}".format(e))
+            self.stdio.error("rca_scene.execute err: {0}".format(e))
+            return ObdiagResult(ObdiagResult.SERVER_ERROR_CODE, error_data="rca_scene.execute err: {0}".format(e))
         try:
             self.rca_scene.export_result()
         except Exception as e:
-            raise Exception("rca_scene.export_result err: {0}".format(e))
+            self.stdio.error("rca_scene.export_result err: {0}".format(e))
+            return ObdiagResult(ObdiagResult.SERVER_ERROR_CODE, error_data="rca_scene.export_result err: {0}".format(e))
         self.stdio.print("rca finished. For more details, the result on '" + Fore.YELLOW + self.get_result_path() + Style.RESET_ALL + "' \nYou can get the suggest by '" + Fore.YELLOW + "cat " + self.get_result_path() + "/record" + Style.RESET_ALL + "'")
         return ObdiagResult(ObdiagResult.SUCCESS_CODE, data={"store_dir": self.get_result_path(), "record": self.rca_scene.Result.records_data()})