I see this error:
Notice: Undefined index: pageno in C:\xampp\htdocs\ims\public\includes\process.php on line 81 You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '-5,5' at line 1
    //manage category
if(isset($_POST["manageCategory"])){
    $m = new Manage();
    $result = $m->manageRecordWithPagination("categories",$_POST["pageno"]);
    $rows = $result["rows"];
    $pagination = $result["pagination"];
    if(count($rows)> 0){
        $n = 0;
        foreach ($rows as $row){
    ?>
      <tr>
        <td><?php echo ++$n; ?></td>
        <td><?php echo $row["category"]; ?></td>
        <td><?php echo $row["parent"]; ?></td>
        <td><a href="#" class="btn btn-success btn-sm">Active</a></td>
        <td>
         <a href ="#" did="" class="btn btn-danger btn-sm">Delete</a>
         <a href ="#" class="btn btn-info btn-sm">Edit</a>
        </td>
      </tr>
    <?php
        }
        ?>
        <tr><td colspan="5"><?php echo $pagination; ?></td></tr>
        <?php
        exit();
    }
 
     
    