Update

app/Models/ExportToken.php

@@ -30,6 +30,11 @@ public function user(): BelongsTo
         return $this->belongsTo(User::class);
     }
 
+    public function isAnonymous(): bool
+    {
+        return is_null($this->user_id);
+    }
+
     public function isExpired(): bool
     {
         return $this->expires_at->isPast();