[Solved] clamav-daemon runs for 15s and then gets killed

Hi,
I moved my ISPConfig-Installation from ubuntu 18.04 to 20.04 - only copied the mails, database-contents and the websites.

• ubuntu 20.04 - I followed perfect-server-ubuntu-20.04-with-apache-php-myqsl-pureftpd-bind-postfix-doveot-and-ispconfig
• ispconfig 3.2.2

The error message at starting with systemctl --> log-clamav-Problem+systemctl.txt
as I'm not allowed to post links

I searched here and google for errors of clamav - I didn't find any suitable. But who kills the process after 15s?
Any ideas?
Thanx in advance
Thomas
I hope the provided information is sufficient.

 

many thanx - this was the reason - I omitted the swap file on my new server - everything run good, but at the moment the clamav-daemon started it was nearly unusable. Now with 2G of swap space:
free -h

I run also some docker images on this little machine and wondered why after booting the memory is heavily used and then some 100Ms less. Now I know.
Thank you for your advice!
Thomas