Erro ao Configurar Certificado e Headers em Sandbox

{
"certificate": "CAMINHO_ABSOLUTO/web\\certificates\\efipay\\homologacao-544374-cert.pem",
"clientId": "Client_Id_????",
"clientSecret": "Client_Secret_???",
"debug": false,
"pwdCertificate": "",
"responseHeaders": true,
"sandbox": true,
"timeout": 30,
"headers": {
"x-skip-mtls-checking": true
}
}