diff --git a/.replit b/.replit
index 6b5c189..d5c2e6d 100644
--- a/.replit
+++ b/.replit
@@ -19,6 +19,10 @@ externalPort = 80
 localPort = 33035
 externalPort = 3001
 
+[[ports]]
+localPort = 38905
+externalPort = 6000
+
 [[ports]]
 localPort = 41295
 externalPort = 5173
diff --git a/client/src/pages/planning-mobile.tsx b/client/src/pages/planning-mobile.tsx
index 6f5da0a..ca8daa3 100644
--- a/client/src/pages/planning-mobile.tsx
+++ b/client/src/pages/planning-mobile.tsx
@@ -273,13 +273,33 @@ export default function PlanningMobile() {
 
   // Funzione per aprire dialog duplicazione sequenza
   const handleOpenDuplicateDialog = (route: any) => {
-    const nextDay = format(addDays(parseISO(selectedDate), 1), "yyyy-MM-dd");
-    setDuplicateDialog({
-      isOpen: true,
-      sourceRoute: route,
-      targetDate: nextDay, // Default = giorno successivo
-      selectedDuplicateGuardId: route.guardId, // Pre-compilato con guardia attuale
-    });
+    try {
+      // Validazione data selezionata
+      const parsedDate = parseISO(selectedDate);
+      if (!isValid(parsedDate)) {
+        toast({
+          title: "Errore data",
+          description: "La data selezionata non è valida",
+          variant: "destructive",
+        });
+        return;
+      }
+
+      const nextDay = format(addDays(parsedDate, 1), "yyyy-MM-dd");
+      setDuplicateDialog({
+        isOpen: true,
+        sourceRoute: route,
+        targetDate: nextDay, // Default = giorno successivo
+        selectedDuplicateGuardId: route.guardId || "", // Pre-compilato con guardia attuale
+      });
+    } catch (error) {
+      toast({
+        title: "Errore",
+        description: "Impossibile aprire il dialog di duplicazione",
+        variant: "destructive",
+      });
+      console.error("Error opening duplicate dialog:", error);
+    }
   };
 
   // Handler submit dialog duplicazione
@@ -879,7 +899,9 @@ export default function PlanningMobile() {
                   <div className="flex items-center justify-between">
                     <span className="text-muted-foreground">Data:</span>
                     <span className="font-medium">
-                      {format(parseISO(duplicateDialog.sourceRoute.scheduledDate), "dd/MM/yyyy", { locale: it })}
+                      {duplicateDialog.sourceRoute.scheduledDate && isValid(parseISO(duplicateDialog.sourceRoute.scheduledDate))
+                        ? format(parseISO(duplicateDialog.sourceRoute.scheduledDate), "dd/MM/yyyy", { locale: it })
+                        : "Data non valida"}
                     </span>
                   </div>
                   <div className="flex items-center justify-between">
@@ -901,7 +923,7 @@ export default function PlanningMobile() {
                 data-testid="input-target-date"
               />
               <p className="text-xs text-muted-foreground">
-                {duplicateDialog.sourceRoute && duplicateDialog.targetDate && 
+                {duplicateDialog.sourceRoute && duplicateDialog.targetDate && duplicateDialog.sourceRoute.scheduledDate && isValid(parseISO(duplicateDialog.sourceRoute.scheduledDate)) &&
                   format(parseISO(duplicateDialog.sourceRoute.scheduledDate), "yyyy-MM-dd") === duplicateDialog.targetDate
                   ? "⚠️ Stessa data: verrà modificata la guardia della sequenza esistente"
                   : "✓ Data diversa: verrà creata una nuova sequenza con tutte le tappe"