java.lang.NullPointerException
	at org.ametys.plugins.repository.AmetysObjectResolver.resolveById(AmetysObjectResolver.java:295)
	at org.ametys.web.repository.site.SiteManager.getSite(SiteManager.java:435)
	at org.ametys.web.transformation.xslt.AmetysXSLTHelper.pluginResourceURL(AmetysXSLTHelper.java:330)
	at jdk.internal.reflect.GeneratedMethodAccessor148.invoke(Unknown Source)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at org.apache.xalan.extensions.ExtensionHandlerJavaClass.callFunction(ExtensionHandlerJavaClass.java:367)
	at org.apache.xalan.extensions.ExtensionHandlerJavaClass.callFunction(ExtensionHandlerJavaClass.java:440)
	at org.apache.xalan.extensions.ExtensionsTable.extFunction(ExtensionsTable.java:222)
	at org.apache.xalan.transformer.TransformerImpl.extFunction(TransformerImpl.java:475)
	at org.apache.xpath.functions.FuncExtFunction.execute(FuncExtFunction.java:208)
	at org.apache.xpath.XPath.execute(XPath.java:337)

<link type="text/css" href="{ametys:pluginResourceURL('survey', 'css/preview.css')}" rel="stylesheet" media="print, screen" />
<script type="text/javascript" src="{ametys:pluginResourceURL('jquery', 'js/jquery.min.js')}"></script>