Unable to install CisPro "cmdhtml.dll not properly signed"

I’m trying to install the program, i’m running as administrator. Just ditched UltraAV.
Capture
Please help!

Hello RollDexSave !

There has been a certificate problem for about a month with Comodo CIS.
You can find a topic here:

I’ll summarise the situation below:

Replacing a failed certificate can be a complex process for a number of reasons:

  1. [Validation and Authorisation: Comodo needs to obtain new authorisation and validation for the certificate, which can take time
  2. [Development and Testing: Once the new certificate has been obtained, it must be integrated into the software, followed by rigorous testing to ensure that it works correctly without introducing new vulnerabilities
  3. [Compatibility: It must be ensured that the new certificate is compatible with all versions of the software and the different operating systems used by customers
    These steps are necessary to ensure that the software remains secure and reliable. Comodo is probably working on these aspects to resolve the problem once and for all.
  4. [Distribution: The update must then be distributed to all users, which can be a major logistical process

So i bought a non functional AV…
Why was i able to buy a non functional AV?
And now i have to go through the hassle to get my money back. FF