3c90aebcc5fac79bc3423ef12098dcd5 *lf1978-06-06d2t02.shn 80e88ba67bb00e36b365827adaa7321d *lf1978-06-06d2t03.shn 4741cb64fb6516973b2507e8c1c15ca0 *lf1978-06-06d2t04.shn 31cfe2853c9134460c6184f2a1d91a01 *lf1978-06-06d2t01.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned