licensing.altera.com never worked

Hi Altera,

I need to apply Nios V free license,  https://licensing.intel.com went to 

https://www.altera.com/SSLC , I signed in successfully,  however the FPGA Self Service Licensing Center.never worked, I got the error "You do not currently have access to this site." for few weeks, see picture below.

Please help fix this issue. Thanks.