Domaine register error

[Titi59]

Hello i try to register a domain and i get 

 

Uncaught TypeError: Cannot read property 'register' of undefined 

and on admin area new order i have 

 

* Indicates a required fieldTLD/Extension not configured for sale. Please check your input before continuing
 

but is configured 

 

my whmcs version 8.1.3

 

i try with six templates same for other information request me 

 

thanks