Vulnerability Database Update fails

Vulnerability Database Update fails

Hello,

I turned off my server during my vacation,
I switched my license from trial to free, as the 30 days were over.

Now I am trying to update the vulnerability database,
Everything works, except the last step, "Syncing security updates"
It takes a while and fails after about 5~10 minutes.

- I already turned off all security software that can possibly block anything,
- I already turned off all network-based security( Astaro UTM), to avoid it blocking anything.

It still keeps failing over and over again,
Can anyone help me to resolve this?

Kind regards,
Frank