I get this, it seems that I have no recent journal. How to reset this to normal?

I found the solution and summarize it here:

https://forums.opensuse.org/showthread.php/506886-systemd-journald-Settings-likey-need-your-attention?p=2801789#post2801789

essentially changed /etc/systemd/journald.conf to have

 SystemMaxUse=100M
 MaxRetentionSec=3month

and

 systemctl restart systemd-journald

this set the journal with a normal way and removed the old entries

thanks jdd