0488bf614428829692f1a60e7db30020 *bt01-05-19d2t01.shn 73b800c0aaf5a2caf35e6055587b2864 *bt01-05-19d2t02.shn 96d01dcc27393d603048194bb68a7243 *bt01-05-19d2t03.shn 52302b976125e5bf55a882e97630edb3 *bt01-05-19d2t04.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned