DataTables error after creating 50000 records - php

Question

I use DataTables in Laravel and after creating 50000 records I have this error:
DataTables warning: table id=employee_table - Ajax error. For more information about this error, please see http://datatables.net/tn/7
It used to work fine when I had 200 records, but now it throws this error. How can it be fixed?
My script:
$(document).ready(function() {
var table = $('.employee_datatable').DataTable({
processing: true,
serverSide: true,
ajax: "{{ route('admin.employees.index') }}",
columns: [
{data: 'image_path', name: 'image_path', orderable: false, searchable: false},
{data: 'name', name: 'name'},
{data: 'position', name: 'position'},
{data: 'recruitment_date', name: 'recruitment_date'},
{data: 'phone_number', name: 'phone_number'},
{data: 'email', name: 'email'},
{data: 'payment', name: 'payment', render: $.fn.dataTable.render.number( ',', '.', 3, '$')},
{data: 'action', name: 'action', orderable: false, searchable: false},
]
});
});
Index function to call the DataTable:
public function index(Request $request)
{
if ($request->ajax()) {
$data = Employee::with('position')->select('id','name','email', 'position_id', 'image_path', 'recruitment_date',
'phone_number', 'payment')->get();
return Datatables::of($data)->addIndexColumn()
->addColumn('position', function (Employee $employee) {
return $employee->position->name;
})->addColumn('image_path', function ($data) { $url=asset("images/$data->image_path");
return '<img src='.$url.' class="rounded-circle" width="40" align="center" />'; })
->addColumn('action', function($data){
$button = ' <i class="fas fa-fw fa-edit"></i>Edit';
$button .= ' <button type="button" name="edit" id="'.$data->id.'" class="delete btn btn-danger btn-sm"">
<i class="fas fa-fw fa-trash"></i> Delete</button>';
return $button;
})->rawColumns(['image_path', 'action'])
->make(true);
}
return view('admin.employees.index');
}

Answer 1

It was indeed because of get() so now my index function looks like this:
$data = Employee::with('position')->select('id','name','email', 'position_id', 'image_path', 'recruitment_date',
'phone_number', 'payment');
Thanks to Manjeet Barnala.