Problem with Thumbnails showing up on wesbite

Recently I moved my e107 v1.01 installation to a different host. After this the thumbs don't show up anymore on the custom pages and news items. Have a look here: Click me!

I use Corlette Lab Gallery version 2.13 and Shadow Box 1.5. These are the latest versions. Strange thing is when I click on the broken thumbnail the big image shows up correctly. What could be the problem?

If you open the mising images in a new tab via right click you get an error message:

Warning: set_time_limit(): Cannot set time limit due to system policy in /customers/9/3/f/marianydesign.com/httpd.www/pascal/plugins/sgallery/includes/sgal_thumb.php on line 49 Warning: Cannot modify header information - headers already sent by (output started at /customers/9/3/f/marianydesign.com/httpd.www/pascal/plugins/sgallery/includes/sgal_thumb.php:49) in /customers/9/3/f/marianydesign.com/httpd.www/pascal/plugins/sgallery/includes/phpthumb.class.php on line 3727

So what can I do to solve it? Change the paths somewhere in the files of Corlette Lab Gallery?

Hey. find plugins/sgallery/includes/sgal_thumb.php


Just outcomment the hole line 49 like this:
//set_time_limit(60); //

Thanks alot! It worked!I almost understand the reason but can someone explain why this happened?