After I unassign Fortitoken, this token shows locked that I can't assign it to others, I tried to unlock it but it shows as Error in CTL, I found that all my Fortitoken can't be assigned or imported because FortiCare unreachable, and my settings don't have "fortiguard-anycast & protocol", please help me. FortiGate
Regarding the anycast/protocol settings, they are only available in higher firmware versions (assuming you are on 5.4 as your post is tagged).
If the issue is still persisting, you might want to consider opening a ticket with Fortinet Technical Support for assistance with digging into the connection between FortiGate and the FortiToken servers.
+++ Divide by Cucumber Error. Please Reinstall Universe and Reboot +++