Debug Desktop Application Certificate Issue

I need help troubleshooting my Flutter desktop exe file. This application is working fine on most machines, but some customers are encountering an unexpected error. The error details are as follows: - DioException [unknown]: null - Error: HandshakeException: Handshake error in client (OS Error: CERTIFICATE_VERIFY_FAILED: unable to get local issuer certificate(../../../ flutter/third_party/boringssl/src/ssl/ handshake.cc.392)) - Strong debugging skills, particularly with desktop applications - Familiarity with network issues and SSL certificate errors - Ability to provide a solution that will enable the application to work on all customer machines.