PHP Notice: Undefined index: ............

[simone6868]

Today i'm installing for the x times cdr-viewer but when i make a search nothing appears...

/var/log/httpd/error_log shows a bunch of...

PHP Notice: Undefined index: endmonth in /var/www/html/asterisk-cdr-viewer/index.php
PHP Notice: Undefined index: endyear in /var/www/html/asterisk-cdr-viewer/index.php

Undefined index: endmonth in /var/www/html/asterisk-cdr-viewer/templates/

I'm using Centos 7 and php 5.6...