- error for groupby in Cpanel

Solving this by paste this code into your constructor class
$this->db->query('set session sql_mode=""');
2, If you getting the error to fetch the value of ckeditor here is the solution.
ClassicEditor
.create(document.querySelector('#editor2'))
.then(editor => {
ckeditor = editor;
})
.catch(error => {
});
ckeditor is global variable
var editor2Data = ckeditor.getData();
this will show you the data.
3. if you want to add value in serialize method you can use this method
var formdata1 = $obj.closest("#note").serialize()+'&'+$.param({ 'notes_value': editor2Data });
After serialize method you can concat your name variable