I am getting Warning: Invalid argument supplied for foreach()

[logesh.dhanasekaran]

<h4>Completed</h4>Total pages indexed: 0
<br>Creating sitemaps...
<div id="percprog"></div>
Creating HTML sitemap...<div id="percprog2"></div> |  | 0.0 | 0:00:00 | 0:00:00                                                                               |  |  |  |  | 0
PHP Warning:  Invalid argument supplied for foreach() in /var/www/html/generator                                                                              /pages/class.gping.inc.php on line 102

Warning: Invalid argument supplied for foreach() in /var/www/html/generator/page                                                                              s/class.gping.inc.php on line 102
|  | 0.0 | 0:00:00 | 0:00:00 |  |  |  |  | 0
|  | 0.0 | 0:00:00 | 0:00:00 |  |  |  |  | 0
|  | 0.0 | 0:00:00 | 0:00:00 |  |  |  |  | 0
<br />Done, redirecting to sitemap view page. <script> top.location = 'index.php 

[XML-Sitemaps Support]

Hello,

are any pages actually added in  sitemap? Please check that your pages are visible to bots:
https://www.xml-sitemaps.com/se-bot-simulator.html