Include editablegrid into WordPress drama

Hi there,

I try to run the editablegrid with sql on a Wp site. Out of the box, it works like charm but in WordPress i got the following error:
SyntaxError: expected expression, got '<' in the editablegrid-2.1.0-b25.js

functions.php of the child theme

require_once( get_stylesheet_directory() . '/includes/adminUtils.php' );

add_action( 'wp_enqueue_scripts', 'theme_enqueue_styles' );
function theme_enqueue_styles() {
    wp_enqueue_style( 'parent-style', get_template_directory_uri() . '/style.css' );

    wp_register_script( "editablegrid", get_stylesheet_directory_uri() .'/lib/editablegridSql/js/editablegrid-2.1.0-b25.js', array('jquery'), false, false );
    wp_register_script( "demo", get_stylesheet_directory_uri() .'/lib/editablegridSql/js/demo.js', array('jquery', 'editablegrid'), false, false );
    wp_enqueue_script( 'demo' );
    wp_localize_script( 'demo', 'myAjax', array( 'ajaxurl' => admin_url( 'admin-ajax.php' )));
}

site:

<div id="wrap">
    <h1>EditableGrid Demo - Database Link</h1> 

    <!-- Feedback message zone -->
    <div id="message"></div>

    <div id="toolbar">
        <input type="text" id="filter" name="filter" placeholder="Filter :type any text here"  />
        <a id="showaddformbutton" class="button green"><i class="fa fa-plus"></i> Add new row</a>
    </div>
    <!-- Grid contents -->
    <div id="tablecontent"></div>

    <!-- Paginator control -->
    <div id="paginator"></div>
</div>
<script type="text/javascript">var datagrid = new DatabaseGrid();(function($) {window.onload = function() { $("#filter").keyup(function() {datagrid.editableGrid.filter( $(this).val());});$("#showaddformbutton").click( function() {showAddForm();});$("#cancelbutton").click( function() {showAddForm();});$("#addbutton").click(function() {datagrid.addRow();});};})(jQuery);
</script>
<div id="addform">
    <div class="row">
        <input type="text" id="name" name="name" placeholder="name" />
    </div>
    <div class="row">
        <input type="text" id="firstname" name="firstname" placeholder="firstname" />
    </div>
    <div class="row tright">
        <a id="addbutton" class="button green" ><i class="fa fa-save"></i> Apply</a>
        <a id="cancelbutton" class="button delete">Cancel</a>
    </div>
</div>

If I don’t write the script code in one line, the error appears there. Ehm, is it normal that every line is wrapped in a <p> when wordpress generates the site?

So hopefully someone can give me a hand or hint what I am doing wrong. Thanks.

greetz

Edit: the only active plugin: insert_php