[Observium] Empty alert log

Hello

I upgraded from 9667 to 9725 and the alert log page is empty.

Before the upgrade there were lot of logs, but now it looks like a not fully rendered page.. The syslog alert shows me logs and the bottom of the page the observium logo and the version number. The alert logs doesn't show this bottom line, just give me an FROM and TO field with a Search button and that is all.

Can i check anything for the debug?

Thanks

Laszlo