[xwiki-users] History throws exceptions

Hi all, we use XEM for a little xwiki Farm, now we have problems with our History. If i look at a previews version of an document i get the error show here --> http://pastebin.centos.org/9499 I thougt update to 1.4 will fix this. But nothing happend. Now i'm backu to the old version. On my CentOS 5.1 x86_64 box the following is installed Kernel 2.6.18-8.1.15.el5xen Java java version "1.6.0_03" Java(TM) SE Runtime Environment (build 1.6.0_03-b05) Java HotSpot(TM) 64-Bit Server VM (build 1.6.0_03-b05, mixed mode) xwiki-enterprise-hsqldb-1.2 "1.2.6932" with jetty (the XEM funktionality was added on a later date) Pluins for XEM xwiki-plugin-application-manager-1.0-rc-1.jar xwiki-plugin-wiki-manager-1.0-rc-1.jar Database is mysql Ver 14.12 Distrib 5.0.22, for redhat-linux-gnu (x86_64) using readline 5.0 mysql-connector-java-3.1.7-bin.jar Here is my xwiki.cfg http://pastebin.centos.org/9507 I think the database shema was not update, i was reading about a bug, but i don't find a soulution that works for me. Hope someone can help. Best regards Marco Weiß Kessler GmbH - Netzwerke und mehr Marco Weiss Gewerbegebiet 6 82399 Raisting Tel.: 08807 / 94 67 7 - 13 Fax: 08807 / 94 67 7 - 99 Mail: marco.weiss(at)kesslernetworks.de Web: www.kesslernetworks.de Sitz der Gesellschaft: Raisting Geschaeftsfuehrer: Florian Kessler HRB 163710