mule2006-08-28t01.flac:f2951386abb7621e9cddc97ad8a27c21 mule2006-08-28t02.flac:042ad01ae6db8be8de7697e8b5e601be mule2006-08-28t03.flac:cc46e565bb17e93cc67447b140fcd164 mule2006-08-28t04.flac:1b2b836012897d1ffebbf8af3135b6d4 mule2006-08-28t05.flac:f5b0f5d2881cdb23a365ef177fda9db8 mule2006-08-28t06.flac:ebc7a41d5c33630d65d16e8ddee4bdcf App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned