soap error

PHP Warning:  SoapClient::__doRequest(): SSL operation failed with code 1. OpenSSL Error messages:
error:0B080074:x509 certificate routines:X509_check_private_key:key values mismatch in /home/mario/soap.php on line 12
PHP Fatal error:  Uncaught SoapFault exception: [HTTP] Error Fetching http headers in /home/mario/soap.php:12
Stack trace:
#0 [internal function]: SoapClient->__doRequest('<?xml version="...', 'https://finanzo...', '', 1, 0)
#1 /home/mario/soap.php(12): SoapClient->__call('GetVersion', Array)
#2 /home/mario/soap.php(12): SoapClient->GetVersion()
#3 {main}
  thrown in /home/mario/soap.php on line 12