VO card is not in the VO reader configured in LDAPEdit
In general the site is either using the wrong reader to login or they did not change the configuration after receiving a new reader. Confirm the card readers installed and configured and try again.
If the site is using the correct reader and it is configured correctly there may be a problem with the registered name. Change the names of the reader in LDAP to 1 from 0 or vice versa and test again. This problem may resolve itself after rebooting in which case the configuration may need to be changed again.