bob_rob1997-07-19t01.flac:d8bc4b6a554782a44fda13172ed6ca85 bob_rob1997-07-19t02.flac:4dea8ec6ce8518e0ac3db06ee747b4e4 bob_rob1997-07-19t03.flac:c2530fedb516266314568f4a1e46e51b bob_rob1997-07-19t04.flac:5285f99ee26abf008ced777058719c74 bob_rob1997-07-19t05.flac:f21ecd41c374248067c37f26e1b86609 App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned