cURL error 60 SSL certificate problem occurs because the curl verifies and makes a secure connection request using self-signed certificate.
When it does not find the valid certificate, it throws an error.
To solve this issue, you have to get a local certificate, and specify it’s location in the php.ini file.
In your php.ini file, specify the location of this certificate by setting (of course, using your actual path to the certificate):
curl.cainfo = C:\Software\php-7.0.2-x86\cacert.pem
Then Restart Apache and you are done.
To fix this error >> https://ibmimedia.com/blog/123/how-to-solve-curl-error-60-ssl-certificate-problem
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