diff --git a/index.html b/index.html
index 5b88c34..efb9e60 100644
--- a/index.html
+++ b/index.html
@@ -389,6 +389,15 @@
             for (const iterator of selectedCity.cii_sn_arr) {
               this.getData(Object.assign({}, _param, { CITY_SN: iterator }), true);
             }
+            if (this.feedbackItem.guide.length === 0
+              && this.feedbackItem.driver.length === 0
+              && this.feedbackItem.experience.length === 0
+              && this.feedbackItem.hotel.length === 0
+            ) {
+              this.error = true;
+              this.errorMsg = 'Data error.';
+              return false;
+            }
           } else {
             this.getData(Object.assign({}, _param, { CITY_SN: selectedCity.cii_sn }));
           }
@@ -419,8 +428,10 @@
           ).then((res) => {
             that.loading = false;
             if (res.errcode !== 0) {
-              that.error = true;
-              that.errorMsg = 'Data error.';
+              if (continually === false) {
+                that.error = true;
+                that.errorMsg = 'Data error.';
+              }
               return false;
             }
             that.feedbackCity[`city_${res.feedbackEvaluation[0].feedback_cii_sn}`] = res;