Fatal error: Call to a member function getFrontNameByRoute() on a non-object

[PCCenterSN]

Hi,

Sometimes (read 3-4 times a week) when I go to my Magento shop, I get the following error:

Fatal error: Call to a member function getFrontNameByRoute() on a non-object in /home/users/pccenftp/shop.pccenter.be/app/code/core/Mage/Core/Model/Url.php on line 547

When I clean the cache, the error is gone, but can anyone tell me what this error is and how to resolve it?

With kind regards.

[kab8609]

I would first search your code to find a 3rd party or local extension that calls "getFrontNameByRoute()".

Is there anymore to this error code?

[PCCenterSN]

After a search I only get references of "getFrontNameByRoute()" in original Magento files, no plugins:

The website also only displays the error, nothing more.