[Bug][R307][bug-view-558][webui] fix the manual search function for the second time has been waiting

Change-Id: I0cd2b675cda9770bc64ae6c18050696c11d7eba2
diff --git a/lynq/R307/ap/app/zte_webui/js/net.js b/lynq/R307/ap/app/zte_webui/js/net.js
index ac6b5c9..650aeb5 100755
--- a/lynq/R307/ap/app/zte_webui/js/net.js
+++ b/lynq/R307/ap/app/zte_webui/js/net.js
@@ -2233,6 +2233,7 @@
                         }

                     }

                 } else {

+                    errorOverlay();

                     target.networkList([]);

                 }

             });