Ok, so now I searched for the error message and found that I need to upgrade my UMC version to MP1.
https://support.symantec.com/en_US/article.TECH235244.html
But I now get an error message when trying to run liveupdate to upgrade the UMC to MP1. - "Failed to establish connection to server or proxy" - and I have entered the correct proxy settings (IP and Port) provided by customer.
DCS: SA version: 6.6.0772
DCS UMC version: 6.6.0257
Any ideas?