[Plugin: SEO Ultimate] Can't delete 404 log

Hi all,
I found after upgrading to 3.1.2 that I can’t delete my 404 log with around 39 entries.

[Plugin: SEO Ultimate]
– I get in the 404 log and after clicking the “Clear log” button all the entries are gone but after a quick refresh I can still see them in the sidebar (numbers in the little circle bubble) and clicking back to the 404 log the list is populated again.

I wouldn’t like to loose any previous work on titles, descriptions, etc. That’s why I prefer to check with you guys at first.

Any inputs on this?
Should I reinstall the plugin? or you might know an easy fix for it..

thanks mates
Nicolas