SAP WEB IDE and BUILD

Hi, i'm trying to import my build model to SAP WEB IDE,

I Followed all the steps in:

https://sap.github.io/BUILD_User_Assistance/build/external/a94fc277085a4d23a30b451d352b36f4.html

But when i try to add the plugin, the repository is not availible,

I've already checked the Destinations and previous steps... Any ideas?