modify

src/be/app/Http/Controllers/HealthyPassPortController.php

 
     public function profile(Request $request){
         $profile = Survey::where('line_user_id',$request->lineUserId)->first();
-        $profile->filler_content = json_decode($profile->filler_content, true);
+        if(!empty($profile->id)){
+            $profile->filler_content = json_decode($profile->filler_content, true);
+        }
         return response()->json(["data" => $profile] );
     }