Fixed client details page as functions was declared twice

accounts.php

@@ -1,4 +1,6 @@
-<?php include("header.php");
+<?php include("header.php"); ?>
+
+<?php
   
   //Paging
   if(isset($_GET['p'])){

client.php

@@ -1,4 +1,5 @@
 <?php include("config.php"); ?>
+<?php include("functions.php"); ?>
 <?php include("check_login.php"); ?>
 
 <?php 

client_side_nav.php

@@ -192,7 +192,7 @@
           </a>
         </li>
 
-        <?php if($session_permission_level == 1 OR $session_permission_level > 3){ ?>
+        <?php if($session_user_role == 1 OR $session_user_role > 3){ ?>
 
         <li class="nav-header mt-3">ACCOUNTING</li>
 

header.php

@@ -1,7 +1,7 @@
 <?php 
 
   include("config.php");
-  include("functions.php");
+  include_once("functions.php");
   include("check_login.php");
 
 ?>