cURL error 60: SSL certificate problem: unable to get local issuer certificate

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I installed the Quill Forms plugin and subscribed to the paid version, but I’m not able to install the addons because it’s showing the error message below:

{
“code”: “cannot_install_addon_plugin”,
“addon_slug”: “hubspot”,
“upgrade_messages”: [
“Baixando pacote de instalação a partir de https://quillforms.com/edd-sl/package_download/MTY3NzM2NTU5NjplZWViZWUyOTAzZWExYzdmNTVlMjVkODJkOGYxOTZhYzo1MDg6MzcyNzY3YmYyMTY5ODNhYmYxYzFlOGI4NTNhZjI1NmE6aHR0cHNALy9jaXNvZm9ydW0uY29tLmJyOjA=…”,
“Falha no download. cURL error 60: SSL certificate problem: unable to get local issuer certificate”
],
“versions”: {
“QuillForms”: “2.4.0”
}
}

The page I need help with: [log in to see the link]

 

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