simle fetchXml query strange ERROR message

I try to filter a subgrid and i get this error which is not very helpful

Could any one look at my fetchXml please and let me know what i am doing wrong

Thanks

function updateSubGrid() {
//This will get the related products grid details and store in a variable.
var relatedProducts = document.getElementById("Activities");

 //relatedProducts= related[0].id;
//Initializing the lookup field to store in an array.
 
var lookupfield = new Array;
 
//Get the lookup field
 
lookupfield = Xrm.Page.getAttribute("regardingobjectid").getValue();
//This will get the lookup field guid if there is value present in the lookup
if (lookupfield != null) {
var lookupid = lookupfield[0].id;
}
//Else the function will return and no code will be executed.
else {
return;
}
//This method is to ensure that grid is loaded before processing.
if (relatedProducts ==null )
{
//This statement is used to wait for 2 seconds and recall the function until the grid is loaded.
setTimeout('updateSubGrid()', 4000);
return;
}

 

var fetchXml  = "<fetch version='1.0' output-format='xml-platform' mapping='logical' distinct='false'>";
fetchXml  += "<entity name='activitypointer'>";


fetchXml  += "<order attribute='modifiedon' descending='false' />";


fetchXml  += "<filter type='and'>";
fetchXml  += "<filter type='or'>";
fetchXml  +="<condition attribute='statecode' operator='eq' value='1' / >"
fetchXml  +="<condition attribute='statecode' operator='eq' value='2' / >"

fetchXml  += "</filter>";
fetchXml  += "</filter>";

fetchXml  += "</entity>";
fetchXml  += "</fetch>";


//Setting the fetch xml to the sub grid.
 
relatedProducts.control.setParameter("fetchXml", fetchXml);
//This statement will refresh the sub grid after making all modifications.
relatedProducts.control.refresh();
}