CRL Expiration Date even with no CRLs

[mtibuleac-cf]

Hello,
we had done some tests by creating a CRL when we created our CAs and then we deleted all CRLs. After a couple of months we got CRL expiration date highlighted in red and there is no way to remove the CRL expiration date of the CA. There are no CRLs at CRL tab.
Thank you.