The EE CARD table cannot contain more than 256 entries.
Recovery
Use the rtrv-ee-card command to see all the cards configured for EE.
Use the dact-ee command to delete the unneeded EE cards.
Re-enter the chg-ee-card command to configure a card for EE.
Refer to the command descriptions in Commands User's Guide for assistance. Contact My Oracle Support if this error message appears again. See My Oracle Support (MOS).