Could be a few problems here.
1: You have the concentric switch programmed for secure selection configuration with “zeroed” out keys, if this is a surplus bought radio that had keys in it.
2: You do not have an encryption key strapped to your personality
3: Your radio died, and didn’t have infinite keys retention set and you lost your keyset.
I would check to see if you have the proper keys loaded, and ensure that they are “strapped” to the proper personalities. If that doesn’t work, bring it to your admin or programming shop.