Can not download meta data file from fortiPortal for SSO

Hi, 

I am trying to perform SSO for fortiPortal(SP) using Shibboleth IDP . I done configuration for fortiportal using docs

" https://docs.fortinet.com...cation-sso#SSO_example "

but I was not able to download metadata file it was giving HTTP 500 [No SAML configuration found] . can anyone please provide me solution why I am not able to download meta data file