The "PHP Fatal error: Call to undefined function curl_init()" error message usually indicates that the cURL extension is not enabled in your PHP configuration.
cURL is a library that provides a way to make HTTP requests from PHP. The curl_init function is used to initialize a cURL session. If the function is undefined, it means that the cURL extension is not available in your PHP installation.
To fix this error, you will need to enable the cURL extension in your PHP configuration. This can usually be done by modifying the php.ini file and uncommenting the following line:
extension=curl
To uncomment the line, remove the ; character at the beginning of the line.
After modifying the configuration, you will need to restart the web server to apply the changes.
It's important to note that the location and name of the php.ini file may vary depending on your PHP installation and operating system. You may also need to install the cURL extension if it is not already installed on your system. Consult the PHP documentation and your system's documentation for more information.