Kasko - Create log - Failed offers

Une erreur s'est produite en traitant le modèle. 
Denied access to method or field getAttribute of class org.apache.catalina.session.StandardSessionFacade

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FTL stack trace ("~" means nesting-related):
	- Failed at: #if httpSession.getAttribute("theLog")??  [in template "20097#20123#416090243" at line 13, column 1]
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1<#assign ddlService = serviceLocator.findService("com.liferay.dynamic.data.lists.service.DDLRecordLocalService") /> 
2<#assign serviceContext = staticUtil["com.liferay.portal.kernel.service.ServiceContextThreadLocal"].getServiceContext() /> 
3 
4<#assign httpSession = request.getSession() > 
5 
6<#assign repsonseKasko = "" > 
7<#if request.getParameter("kr")??> 
8    <#assign repsonseKasko = request.getParameter("kr") > 
9</#if> 
10 
11<#assign now = .now > 
12 
13<#if httpSession.getAttribute("theLog")??> 
14    <#assign ddlRecord = ddlService.addRecord(10196, 1465818, 416082736, ddlService.getDDLRecordsCount(), {"datetime":now?iso_utc,"responsekasko": repsonseKasko,"log": httpSession.getAttribute("theLog")}, serviceContext) /> 
15</#if>