diff --git a/frontend/src/components/ConfigPanel.jsx b/frontend/src/components/ConfigPanel.jsx
index 93ccc8e..b504f9d 100644
--- a/frontend/src/components/ConfigPanel.jsx
+++ b/frontend/src/components/ConfigPanel.jsx
@@ -398,16 +398,16 @@ const ConfigPanel = ({ currentUser }) => {
     checkFeasibility()
     if (isAdmin) {
       loadSystemStatus()
+      loadBackendStatus()
     }
-    loadBackendStatus()
     loadAccountTradingStatus()
     loadCurrentAccountMeta()
 
     const timer = setInterval(() => {
       if (isAdmin) {
         loadSystemStatus()
+        loadBackendStatus()
       }
-      loadBackendStatus()
       loadAccountTradingStatus()
       loadCurrentAccountMeta()
     }, 3000)
@@ -441,8 +441,8 @@ const ConfigPanel = ({ currentUser }) => {
     checkFeasibility()
     if (isAdmin) {
       loadSystemStatus()
+      loadBackendStatus()
     }
-    loadBackendStatus()
     loadAccountTradingStatus()
     loadCurrentAccountMeta()
   }, [accountId])
@@ -879,10 +879,12 @@ const ConfigPanel = ({ currentUser }) => {
               <pre style={{ whiteSpace: 'pre-wrap', marginTop: '8px' }}>{String(accountTradingStatus.stderr_tail_error || '')}</pre>
             </details>
           ) : null}
-          {accountTradingStatus?.supervisord_tail ? (
+          {['FATAL', 'EXITED', 'BACKOFF'].includes(String(accountTradingStatus?.state || '')) ? (
             <details style={{ marginTop: '8px' }}>
               <summary style={{ cursor: 'pointer' }}>supervisord 主日志尾部（spawn error 常见原因在这里）</summary>
-              <pre style={{ whiteSpace: 'pre-wrap', marginTop: '8px' }}>{String(accountTradingStatus.supervisord_tail || '')}</pre>
+              <pre style={{ whiteSpace: 'pre-wrap', marginTop: '8px' }}>
+                {String(accountTradingStatus?.supervisord_tail || '（暂无：可能未配置 supervisord logfile 或当前用户无权限读取。可在后端配置 SUPERVISOR_LOGFILE 指向 supervisord 主日志路径）')}
+              </pre>
             </details>
           ) : null}
         </div>