e5c4dc95bc955fd3c39262deebe3170e *slip01-03-15d1t01.shn 59893b749219350882cfcecc1585d71a *slip01-03-15d1t02.shn 74ee414200da8e0d839ba257fa9cde54 *slip01-03-15d1t03.shn 55148ceb631da9c20820e6e7c99bd1fe *slip01-03-15d1t04.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned