bfb02cedc1eff84a9f194faaf78acb18 *particle2002-05-31d3t03.shn 8f1f88c6821336deb1600e85eb3c8350 *particle2002-05-31d3t02.shn 74a1df80e1935a41b6b343f511b124a5 *particle2002-05-31d3t01.shn 698450dd30589fd08c0f33be8837e667 *particle2002-05-31d3t04.shn App\Http\Controllers\Api\FileDownloadController::download(): Return value must be of type string, none returned