This is an error message indicating that your email server is unable to connect to the SMTP server. This could be due to a variety of reasons, including incorrect server settings, network issues, or a temporary outage on the SMTP server.

For more information and solutions, you can consult the official PHPMailer troubleshooting documentation:

'https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting'

SMTP Connect Error: Troubleshooting PHPMailer - 'SMTP connect() failed'

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