Hi, I've just tried to use the excel export package and I get this error: Fatal error: Uncaught Error: Call to a member function meta() on array in C:\wamp64\www\accounting\reports\koolreport\excel\TableBuilder.php on line 442

Here is the expression:

DataTables::create(array(
		"dataSource"=>$turnover,
		"name"=>"turnover_table",
		"language"=>"bg",
		"fastRender" => true,
		"options"=>array(
			"searching"=>true,
			"select"=>true,
			//prefilter table with data from search field
			"stateSave"=>true,
			  "stateLoadParams"=>"function (settings, data) {
				data.search.search = '$search_param';
			}",
		),
		"showFooter"=>"bottom",		
        "columns"=>array(
            "AccDesc"=>array(
                "label"=>"Описание",
				"footerText"=>"<b>Общо</b>"
            ),
            "Acc"=>array(
                "label"=>"Сметка",
				"footerText"=>"<b>---</b>"
            ),
			"AmSumSBDebit"=>array(
                "label"=>"Начално Салдо Дт",
				"footer"=>"sum",
				"footerText"=>"<b>@value</b>",
				"type"=>"float"
            ),
			"AmSumSBCredit"=>array(
                "label"=>"Начално Салдо Кт",
				"footer"=>"sum",
				"footerText"=>"<b>@value</b>",
				"type"=>"float"
            ),
			"AmSumDebit"=>array(
                "label"=>"Обороти Дт",
				"footer"=>"sum",
				"footerText"=>"<b>@value</b>",
				"type"=>"float"
            ),
			"AmSumCredit"=>array(
                "label"=>"Обороти Кт",
				"footer"=>"sum",
				"footerText"=>"<b>@value</b>",
				"type"=>"float"
            ),
			"AmSumEBDebit"=>array(
                "label"=>"Крайно Салдо Дт",
				"footer"=>"sum",
				"footerText"=>"<b>@value</b>",
				"type"=>"float"
            ),
			"AmSumEBCredit"=>array(
                "label"=>"Крайно Салдо Кт",
				"footer"=>"sum",
				"footerText"=>"<b>@value</b>",
				"type"=>"float"
            )
        ),
        "cssClass"=>array(
            "table"=>"table table-bordered table-striped"
        )
	));