Business rule do not work

Hello,

i created Business rules to assign requests to technician or groups based on words in the subject- but they do not work. It worked in older releases, but since update to 7.5 it never worked.
I have created the Business rule in the default and also in the site where the requester was defined.

I am Using SD 7.5.0 (7004).
I see this error in the log:

[06:00:39:810]|[02-26-2009]|[com.adventnet.servicedesk.mailutils.MailInterpreter]|[INFO]|[39]|: HeaderName : From, headerValue : user@test.com|
[06:00:39:810]|[02-26-2009]|[com.adventnet.servicedesk.mailutils.MailInterpreter]|[INFO]|[39]|: HeaderName : To, headerValue : sd_manageengine@test.com|
[06:00:39:810]|[02-26-2009]|[com.adventnet.servicedesk.mailutils.MailInterpreter]|[INFO]|[39]|: HeaderName : Subject, headerValue : =?UTF-8?Q?Testmail=5Fcheck=5Ffunction?=|
[06:00:39:810]|[02-26-2009]|[com.adventnet.servicedesk.mailutils.MailInterpreter]|[INFO]|[39]|: HeaderName : Content-Type, headerValue : text/plain; charset="UTF-8"|
[06:00:39:810]|[02-26-2009]|[com.adventnet.servicedesk.mailutils.MailInterpreter]|[INFO]|[39]|: HeaderName : Content-Transfer-Encoding, headerValue : 7bit|
[06:00:39:810]|[02-26-2009]|[com.adventnet.servicedesk.mailutils.MailInterpreter]|[INFO]|[39]|: HeaderName : Return-Path, headerValue : gerhard.raffetseder@test.com|
[06:00:39:810]|[02-26-2009]|[com.adventnet.servicedesk.mailutils.MailInterpreter]|[INFO]|[39]|: HeaderName : Message-ID, headerValue : <VIEMX001XUkzni5rWqB0000463d@viemx001.mp.local>|
[06:00:39:810]|[02-26-2009]|[com.adventnet.servicedesk.mailutils.MailInterpreter]|[INFO]|[39]|: HeaderName : X-OriginalArrivalTime, headerValue : 26 Feb 2009 05:00:03.0025 (UTC) FILETIME=[156CDC10:01C997CF]|
[06:00:39:810]|[02-26-2009]|[com.adventnet.servicedesk.mailutils.MailInterpreter]|[INFO]|[39]|: HeaderName : Date, headerValue : 26 Feb 2009 06:00:03 +0100|
[06:00:39:810]|[02-26-2009]|[com.adventnet.servicedesk.mailutils.MailInterpreter]|[INFO]|[39]|: HeaderName : MIME-Version, headerValue : 1.0|
[06:00:39:810]|[02-26-2009]|[com.adventnet.servicedesk.mailutils.MailInterpreter]|[INFO]|[39]|: HeaderName : X-Priority, headerValue : 3|
[06:00:39:810]|[02-26-2009]|[com.adventnet.servicedesk.mailutils.MailProcessor]|[INFO]|[39]|: FFF dataObj.addRow|
[06:00:39:810]|[02-26-2009]|[com.adventnet.servicedesk.mailutils.MailProcessor]|[INFO]|[39]|: FFF FFF isThreadedReq : false|
[06:00:39:810]|[02-26-2009]|[com.adventnet.servicedesk.mailutils.MailProcessor]|[INFO]|[39]|: FFF FFF isThreadedReq : false|
[06:00:39:919]|[02-26-2009]|[com.adventnet.servicedesk.utils.WorkOrderUtil]|[SEVERE]|[39]|: Exception while trying to get the match workorder row, against the sla. |
[06:00:39:919]|[02-26-2009]|[com.adventnet.servicedesk.utils.WorkOrderUtil]|[SEVERE]|[39]|: Exception while trying to get the match workorder row, against the sla. |
[06:00:39:919]|[02-26-2009]|[com.adventnet.servicedesk.utils.WorkOrderUtil]|[SEVERE]|[39]|: Exception while trying to get the match workorder row, against the sla. |
[06:00:39:919]|[02-26-2009]|[com.adventnet.servicedesk.utils.WorkOrderUtil]|[SEVERE]|[39]|: Exception while trying to get the match workorder row, against the sla. |
[06:00:39:919]|[02-26-2009]|[com.adventnet.sqlone.search.dbcrawler.ejb.internal.DatabaseCrawler]|[INFO]|[39]|: Connection obtained for crawling the database <AppIndexingInfo CRID="125" APPLICATIONID="1" APPLICATIONNAME="ServiceDesk" APPDSNAME="default" MAXWORDSIZE="200" INDEXINGDELIMITERS=",:@-. (){}" ENABLEPARTIALSEARCH="true" ENABLEDYNAMICINDEXING="true" ENABLEINCREMENTALINDEXING="false" POPULATE_FK_REL="false" STATUS="0" />|
[06:00:40:013]|[02-26-2009]|[SYSOUT]|[INFO]|[39]|: woID_final [4083] userID [null] notify_final TechIntimation|

Please check
Br
Gerhard