diff --git a/AdminPanel/client/src/components/ConfigViewer/ConfigViewer.js b/AdminPanel/client/src/components/ConfigViewer/ConfigViewer.js
index 02614bdb..7b7bbc12 100644
--- a/AdminPanel/client/src/components/ConfigViewer/ConfigViewer.js
+++ b/AdminPanel/client/src/components/ConfigViewer/ConfigViewer.js
@@ -21,11 +21,14 @@ const ConfigViewer = () => {
     return config ? JSON.stringify(config, null, 2) : '';
   }, [config]);
 
-  const copyToClipboard = () => {
-    if (jsonString) {
-      navigator.clipboard.writeText(jsonString);
+  const copyToClipboard = async () => {
+    if (!jsonString) return;
+    try {
+      await navigator.clipboard.writeText(jsonString);
       setCopySuccess(true);
       setTimeout(() => setCopySuccess(false), 2000);
+    } catch {
+      // Clipboard API may fail on HTTP or restricted contexts
     }
   };
 
diff --git a/AdminPanel/client/src/components/ShutdownTab/ShutdownTab.js b/AdminPanel/client/src/components/ShutdownTab/ShutdownTab.js
index 1cddc571..bd0ba0c3 100644
--- a/AdminPanel/client/src/components/ShutdownTab/ShutdownTab.js
+++ b/AdminPanel/client/src/components/ShutdownTab/ShutdownTab.js
@@ -21,14 +21,14 @@ const ShutdownTab = () => {
   const shutdownMutation = useMutation({
     mutationFn: enterMaintenanceMode,
     onSuccess: () => {
-      queryClient.setQueryData(['maintenanceStatus'], prev => ({...(prev || {}), shutdown: true}));
+      queryClient.invalidateQueries({queryKey: ['maintenanceStatus']});
     }
   });
 
   const resumeMutation = useMutation({
     mutationFn: exitMaintenanceMode,
     onSuccess: () => {
-      queryClient.setQueryData(['maintenanceStatus'], prev => ({...(prev || {}), shutdown: false}));
+      queryClient.invalidateQueries({queryKey: ['maintenanceStatus']});
     }
   });
 
diff --git a/AdminPanel/server/sources/routes/config/config.service.js b/AdminPanel/server/sources/routes/config/config.service.js
index 4f784d7d..34b7601f 100644
--- a/AdminPanel/server/sources/routes/config/config.service.js
+++ b/AdminPanel/server/sources/routes/config/config.service.js
@@ -233,9 +233,7 @@ function redactSensitiveParams(config, sensitivePaths) {
  */
 function getFullConfigRedacted(ctx) {
   const cfg = ctx.getFullCfg();
-  const configCopy = JSON.parse(JSON.stringify(cfg));
-
-  return redactSensitiveParams(configCopy, SENSITIVE_PARAM_PATHS);
+  return redactSensitiveParams(cfg, SENSITIVE_PARAM_PATHS);
 }
 
 module.exports = {validateScoped, getScopedBaseConfig, filterAdmin, getDiffFromBase, getFullConfigRedacted, getScopedConfig};