0.5.4 - Strange PHP Notice

After upgrading to 0.5.4 i found many php notice in my error-log:

[Tue Dec 22 15:19:57 2009] [error] [client 11.22.33.44] PHP Notice:  Undefined index:  page_maximum_length in /var/www/vhosts/mydomain.ext/subdomains/stats/httpdocs/core/Tracker/Action.php on line 145, referer: http://www.domaintrack.ext/index.htm

I know, it’s just a notice… but i can’t figure what’s wrong.

thanks in advance!

k.

solved it!

when i update, i don’t overwrite config/global.ini.php !