bkatk2021-05-07d1t01.flac:860d3c40fd28d7ae0a9a17ea351e2a8f bkatk2021-05-07d1t02.flac:8e7175f6376daf922d03f1e13cbd11ff bkatk2021-05-07d1t03.flac:7ca43bf92190034e0e362df1c1769036 bkatk2021-05-07d1t04.flac:6d6d2484a3ecfa5714e0f3610ef6d808 bkatk2021-05-07d2t01.flac:e2c9aed8f7eed3f68b576c660bc0d05a bkatk2021-05-07d2t02.flac:61fe2fc21bddbfd13805610f699e43de App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned