2019-10-21-cURL error 60: SSL ce

Fatal error: Uncaught GuzzleHttp\Exception\RequestException: cURL error 60: SSL
certificate problem: unable to get local issuer certificate (see http://curl.hax
x.se/libcurl/c/libcurl-errors.html) in D:\www\phproxy\vendor\guzzlehttp\guzzle\s
rc\Handler\CurlFactory.php:186
Stack trace:
#0 D:\www\phproxy\vendor\guzzlehttp\guzzle\src\Handler\CurlFactory.php(149): Guz
zleHttp\Handler\CurlFactory::createRejection(Object(GuzzleHttp\Handler\EasyHandl
e), Array)
#1 D:\www\phproxy\vendor\guzzlehttp\guzzle\src\Handler\CurlFactory.php(102): Guz
zleHttp\Handler\CurlFactory::finishError(Object(GuzzleHttp\Handler\CurlHandler),
 Object(GuzzleHttp\Handler\EasyHandle), Object(GuzzleHttp\Handler\CurlFactory))
#2 D:\www\phproxy\vendor\guzzlehttp\guzzle\src\Handler\CurlHandler.php(43): Guzz
leHttp\Handler\CurlFactory::finish(Object(GuzzleHttp\Handler\CurlHandler), Objec
t(GuzzleHttp\Handler\EasyHandle), Object(GuzzleHttp\Handler\CurlFactory))
#3 D:\www\phproxy\vendor\guzzlehttp\guzzle\src\Handler\Proxy.php(28): GuzzleHttp
\Handler\CurlHandler->__invo in D:\www\phproxy\vendor\guzzlehttp\guzzle\src\Hand
ler\CurlFactory.php on line 186