List Web part not loading after adding JavaScript

List web parts are not loading after i added javascript to Script Editor.

Here is my script

<script type="text/javascript" src="_layouts/15/sp.runtime.js"></script><script type="text/javascript" src="_layouts/15/sp.js"></script><script  src="/_layouts/15/MicrosoftAjax.js"></script><script type="text/javascript">
var context = SP.ClientContext.get_current();
var user = context.get_web().get_currentUser();
var web = context.get_web();
var oList;
var listitems;

function deletelistItems()
{
    var query = new SP.CamlQuery();
    oList = web.get_lists().getById("{5057665-4fcb-4946-87ba-2fb612f995e}");
    query.set_viewXml("<View><Query><Where><Eq><FieldRef Name='Compare' /><Value Type='Choice'>InValid</Value></Eq></Where></Query></View>");
    listitems = oList.getItems(query);
    context.load(listitems);
    context.executeQueryAsync(deleteQS, deleteQF);
}