diff --git a/web_src/js/features/cloudbrainShow.js b/web_src/js/features/cloudbrainShow.js
index b463eafd8..affae8f8f 100644
--- a/web_src/js/features/cloudbrainShow.js
+++ b/web_src/js/features/cloudbrainShow.js
@@ -41,6 +41,7 @@ export default async function initCloudrainSow() {
           if (data.Lines == 0) {
             if (max) {
               $("body").toast({
+                class: "black",
                 message: `您已翻阅至日志底部,请稍后再试！`,
               });
             } else {
@@ -87,6 +88,7 @@ export default async function initCloudrainSow() {
           if (data.Lines == 0) {
             if (max) {
               $("body").toast({
+                class: "black",
                 message: `您已翻阅至日志顶部,请稍后再试！`,
               });
             } else {
@@ -165,6 +167,7 @@ export default async function initCloudrainSow() {
         if (data.Lines == 0) {
           if (max) {
             $("body").toast({
+              class: "black",
               message: `您已翻阅至日志顶部,请稍后再试！`,
             });
           } else {
@@ -244,6 +247,7 @@ export default async function initCloudrainSow() {
             if (data.Lines == 0) {
               if (max) {
                 $("body").toast({
+                  class: "black",
                   message: `您已翻阅至日志底部,请稍后再试！`,
                 });
               } else {
@@ -278,7 +282,8 @@ export default async function initCloudrainSow() {
         });
 
         let test = $(`#log_file${version_name}`).nextAll();
-        $(`#log${version_name} input[name=init_log]`).val(test[0].innerHTML);
+        test.length !== 0 &&
+          $(`#log${version_name} input[name=init_log]`).val(test[0].innerHTML);
 
         scrollAnimation(
           logContentDom,