c7fd552dfeadbf7d17486f79a433fe9c [shntool] gd69-09-06d1t01.shn 4b736d3bd12bcf3f196913579a738c30 [shntool] gd69-09-06d1t02.shn 8a54ebe5cdd60c5c763105ff69d48a61 [shntool] gd69-09-06d1t03.shn da97fff4f3254c448d7c27908f6891c8 [shntool] gd69-09-06d1t04.shn 795ec9855d43e81d2ac18cb4e7295f6c [shntool] gd69-09-06d1t05.shn 2bd973c02cd9d5cb364f8cd191cdb682 [shntool] gd69-09-06d1t06.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned