I dont know what is going on with this error on step 5

[zenc11]

Fatal error: Uncaught exception 'Exception' with message 'String could not be parsed as XML' in /home/vombgbdm/public_html/buynow/includes/servers/whm.php:67 Stack trace: #0 /home/vombgbdm/public_html/buynow/includes/servers/whm.php(67): SimpleXMLElement->__construct('') #1 /home/vombgbdm/public_html/buynow/includes/servers/whm.php(111): whm->remote('/xml-api/create...') #2 /home/vombgbdm/public_html/buynow/includes/class_server.php(210): whm->signup('1', '0') #3 /home/vombgbdm/public_html/buynow/includes/ajax.php(263): server->signup() #4 /home/vombgbdm/public_html/buynow/includes/ajax.php(1110): Ajax->create() #5 {main} thrown in /home/vombgbdm/public_html/buynow/includes/servers/whm.php on line 67

This is what I get when i get to step five of testing my hostingtool. If anyone knows how to fix it, please let me know and thank you.

[Kevin]

Please check your WHM server configuration. Make sure your hostname, username, and hash. This is usually a connection error.