After Certification import not successfully

[bollukarunakar]

Hi Team,

Change  we have performed certification renewal after imported new certification it got failed as New certs were not able to override the old one

1.We got the below error while overriding:

2. Below error when we deleted old certs and imported new certs(renamed alias name as new):

some one please guide for us it will helpful.

Thanks for you support...