White page when saving new article or configuration page

Hi!

Since update to v.1.5.0 I get a blank page saving new articles.

Also I am unable to save firewall configuration page => blank white page!

Here is what notification mail contains:

TYPE: Found Basic Javascript Injection
DETECTED ATTACK VALUE: <script>alert(31337)</script>
ACTION: Blocked
LOGTIME: 2013-02-13 11:11:13
FROM IP: https://whois.domaintools.com/XXXXXX
URI: https://XXXXXX.XX/wp-core/index.php
METHOD: GET
USERAGENT: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:18.0) Gecko/20100101 Firefox/18.0
REFERRER: https://XXXXXX.XX/wp-core/wp-admin/options-general.php?page=ose_wp_firewall_conf

Thanks in advance!

Alex

https://www.ads-software.com/extend/plugins/ose-firewall/