버그 수정

https://github.com/openNAMU/openNAMU/issues/2475

route/tool/func.py

@@ -1243,7 +1243,7 @@ def skin_check(conn, set_n = 0):
         return skin
     
 def cache_v():
-    return '.cache_v283'
+    return '.cache_v284'
 
 def wiki_css(data):
     with class_temp_db() as m_conn:

views/main_css/js/route/setting_404_page.js

@@ -71,7 +71,12 @@ function opennamu_setting_404_page() {
         data_html += '</select>';
         data_html += '<hr class="main_hr">';
 
-        data_html += '<textarea class="opennamu_textarea_500" id="opennamu_setting_404_page_textarea">' + data[2]['data'][0][0] + '</textarea>';
+        let set_data = '';
+        if(data[2]['data'].length > 0) {
+            set_data = data[2]['data'][0][0];
+        }
+
+        data_html += '<textarea class="opennamu_textarea_500" id="opennamu_setting_404_page_textarea">' + set_data + '</textarea>';
         data_html += '<hr class="main_hr">';
 
         data_html += '<button id="opennamu_save_button" onclick="opennamu_setting_404_page_post();">' + data[0]['data'][0] + '</button> ';