Problem: WARNING: IMPLODE() [ FUNCTION.IMPLODE line 74

Guys, i have an issue:

WARNING: IMPLODE() [
FUNCTION.IMPLODE
]: INVALID ARGUMENTS PASSED IN /HOME/MAXPALMA/PUBLIC_HTML/WP-CONTENT/THEMES/PORTFOLIO GRAY V1.2.2/ORGANIC_PORTFOLIO_GRAY/HEADER.PHP ON LINE 74

I dont know how to fix this thing, i try, but i can’t, can some one help me???

the problem is here maybe?:

<div id=”nav”>

<div id=”navbarleft”>
<ul class=”ot-menu”><li<?php if (is_home()) { echo ” class=\”current_page_item\””; }?>>“><?php _e(“Home”, ‘organicthemes’); ?>
<?php $include_categories = ot_option(‘include_categories’); ?>
<?php wp_list_categories(‘depth=4&title_li=&sort_column=menu_order&include=’.implode(‘,’, $include_categories)); ?>
</div>

<div id=”navbarright”>
<ul class=”ot-menu”>
<?php $include_pages = ot_option(‘include_pages’); ?>
<?php wp_list_pages(‘title_li=&sort_column=menu_order&include=’.implode(‘,’, $include_pages)); ?>

</div>

</div>