I'm trying to set up my droplet with the domain I bought in register.br following the DigitalOcean .
In the second step of the tutorial it says that I have to change registry.br domain servers to digitalocean .
I'm trying to do this by going to my domain in the DNS section and clicking the CHANGE DNS SERVER
But when I do this, I'm presented with the following error when I click SAVE DATA :
Does anyone know where I'm going wrong? Am I doing this in the right place?