874c03af087b63e2149400e99002ca4f *kdtu2001-07-14d2t03.shn 0678129eab55f82452e76c57f463c1ba *kdtu2001-07-14d2t02.shn 2e222ec2d1b340abf7cd0a3b54034b2e *kdtu2001-07-14d2t01.shn 2f81e6eb6d4283c77cb363294d87e5a1 *kdtu2001-07-14d2t04.shn e0e0faedbc0d4738d72a1d0ae98c13a3 *kdtu2001-07-14d2t05.shn f84191f3cc5cbbaf0362d234d47dc486 *kdtu2001-07-14d2t06.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned