Error Repeat Control

I’m working well with repeat controls and just for a particular view shows up the following error:


Page Name:/Copy_of__3_Repetitivo2.xsp

Exception

Could not open the document

► ▼ Stack Trace

com.ibm.xsp.FacesExceptionEx: Could not open the document

com.ibm.domino.xsp.bridge.http.engine.XspCmdManager.service(XspCmdManager.java:222)

NotesException: A required argument has not been provided


datasource for repeat is:

-------- ques=@DbLookup(@DbName(),“DVXP”,sessionScope.pCentroProduccion,5);

// column 5 has UniversalId of Documents

if (@Elements(ques)>0){

		@Explode(ques);

}

is it a problem with some documents of that view?

Thank you

Nina