Error 554 Please help

[Endi555]

Hi, 

on the home page I clicked on the product and I got this eeror. 

Someoneknow how to fix it?

ContextErrorException in 6ce08f6ef210ea2912f5994301aa4e1a1abcda68.file.product.tpl.php line 554:Notice: Undefined index: category

1. in 6ce08f6ef210ea2912f5994301aa4e1a1abcda68.file.product.tpl.php line 554
2. at ErrorHandler->handleError('8', 'Undefined index: category', '/home/mole24/domains/testas.mobile24.lt/public_html/app/cache/dev/smarty/compile/layouts_layout_right_column_tpl/6c/e0/8f/6ce08f6ef210ea2912f5994301aa4e1a1abcda68.file.product.tpl.php', '554', array('_smarty_tpl' => object(Smarty_Dev_Template), '_tpl_stack' => array(), '_from' => array())) in 6ce08f6ef210ea2912f5994301aa4e1a1abcda68.file.product.tpl.php line 554
3. at content_5904cc51d0d498_52052731(object(Smarty_Dev_Template)) in smarty_internal_templatebase.php line 188
4. at Smarty_Internal_TemplateBase->fetch('catalog/product.tpl', null, 'layouts/layout-right-column.tpl', object(SmartyDev), false, true, false) in SmartyDev.php line 41
5. at SmartyDev->fetch('catalog/product.tpl', null, 'layouts/layout-right-column.tpl') in FrontController.php line 660
6. at FrontControllerCore->smartyOutputContent('catalog/product.tpl') in FrontController.php line 644
7. at FrontControllerCore->display() in Controller.php line 225
8. at ControllerCore->run() in Dispatcher.php line 369
9. at DispatcherCore->dispatch() in index.php line 28

 

[Andrej Stas]

What PS version do you use?

 

Do you use the classic or some purchased theme?

 

Did you add your own products?

 

Did you install any third party modules?

 

 

I would recommend to install a new test installation and try to set a module by module, a setting by setting to see at what moment it stops working.