f96a0728adce4033c6e7006509b7a639 bt1992-02-20d1t01.shn 961d3d81845ab89d8c43dac91d46ed7b bt1992-02-20d1t02.shn 75aec56a593ba252c8bf6a4e53c6f496 bt1992-02-20d1t03.shn 3fbc84d554b0b138c8e2d29e6fc156ec bt1992-02-20d1t04.shn 207b821b03dbb51c6ec15a98e38533d2 bt1992-02-20d1t05.shn 333b73894aeee5ea6b0a85494e530e02 bt1992-02-20d1t06.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned