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Hello, I am trying add order for my client. After click Submit, I got error as below: Fatal error: Call to undefined function bundlesValidateCheckout() in /home/clientmu/public_html/includes/orderfunctions.php on line 0 I am using WHMCS 5.0.3 after upgrading from 4.x Need your help.

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Hello, I am trying add order for my client. After click Submit, I got error as below: Fatal error: Call to undefined function bundlesValidateCheckout() in /home/clientmu/public_html/includes/orderfunctions.php on line 0 Need your help. My WHMCS domain is: http://client.muliahost.com Admin URL is: http://client.muliahost.com/tengkulak I was upgrade from WHMCS 4.x to 5.0.3 Need your help. Thank you Kalpin