Fortitokens do not work after updating the firmware to version 5.4.5

I had activated, assigned and working on a FortiGate200D the 20 fortitoken200 and after updating the firmware to version 5.4.5 they stopped working. I have tried to remove and re-add a couple of the tokens but the status remains in error I have also tried to re-assign one of the tokens to a user but when entering the VPN-SSL it does not request the password. Any ideas to solve this problem?