Last 4 items in log file:
)) - error HTTP 401 - UNAUTHORIZED
2025/11/19 19:07:03 Info PagSeguroTransactionSearchService.SearchByCode(59A13D84-52DA-4AB8-B365-1E7D893052B0) - begin
2025/11/19 19:07:03 Error PagSeguroTransactionSearchService.SearchByCode(transactionCode=59A13D84-52DA-4AB8-B365-1E7D893052B0) - error HTTP 401 - UNAUTHORIZED
2025/11/19 19:07:04 Error Invalid notification parameters.