Dev License: This installation of WHMCS is running under a Development License and is not authorized to be used for production use. Please report any cases of abuse to abuse@whmcs.com
We provide technical support through Support ticket system only. For better understanding of your problem, you need to open a tech support ticket from your client area with below details
1) Domain name with the problem
2) Explain about the problem
3) Any Error message / Error screenshot can attach as .jpg file
4) If you have a email related issue, please insert the bounce back email ( if any )