__ci_last_regenerate|i:1787476526;_ci_previous_url|s:63:"https://localhost/pubres/public/index.php/admin/upload-students";user_id|s:1:"1";reg_num|s:23:"pattypeter.rr@gmail.com";first_name|s:5:"Admin";last_name|s:4:"User";role|s:10:"superadmin";logged_in|b:1;selected_academic_year_id|s:1:"2";error|s:162:"Failed to parse student data from the uploaded file. Error details: Call to undefined method PhpOffice\PhpSpreadsheet\Worksheet\Worksheet::getCellByColumnAndRow()";__ci_vars|a:1:{s:5:"error";s:3:"old";}