Certificate 'TNCERTCA' is expiring within 9 days

Hi,

I am getting the message “Certificate ‘TNCERTCA’ is expiring within 9 days.” - Can someone point out the procedure to remediate this incident?

this is the core version - but it should be similar to SCALE.

Thanks so far, I created an new certificate as outlined in the guide you provided. However: I cannot delete the old certificate, since it tells me this is still in use in many places. How do I prompt the System to replace said certificate with the new one, before it expires?

Solved it myself. For anybody encountering the same issue:

Go to System → General, Select the new GUI SSL Certificate (generated with the new CA). → Save.

Thereafter go to Certificates delete the Certificate that was previously used als GUI SSL Certificate.

Thereafter got to CA and delete the old CA

done.