Fotigate VM 6.0 VPN ssl command

good night Please, sorry my english, but I need help. I m config vpn ssl in fortigate vm 6.0 and command not found set algorithm medium Is necessary enable? is there a limitation when configuring vpn in the test version in fortigate vm? The error is exactly the same as the url below http://www.layer8.one/for...-may-be-unreachable-5/ Thank you very much.