ce0b1a37c121840520a62786f08496df *jgb93-08-14d3t01.shn 72960e267def1c3cf2c8d7a8409a5e4e *jgb93-08-14d3t02.shn 23aef24f076c6da918a9bc0ad948a8e2 *jgb93-08-14d3t03.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned