UBB.Developers Forums UBB.threads 6 V6 Modifications Archived Mods [6.2] Popup Graemlin Panel

I installed it, and then when I went to edit the number in the admin panel, I got this:

Fatal error: Call to undefined function: get_input() in /home/elazulsp/public_html/ep/admin/doedittheme.php on line 39

My doedittheme.php code looks like this:

$themeextras = str_replace("<br>","\n",$themeextras);

and the setup tells me to replace this:

$themeextras = get_input("themeextras","post");

with this:

$themeextras = get_input("themeextras","post");
$max_graemlins = get_input("max_graemlins","post");