Magento：致命的错误问题

Question

I downloaded an updated module earlier and everything was going fine (except that the module wasn't working 100%) and I went to do some debugging. I started by comparing some folder from the old module with the updated module. Everything seemed to check out but there was still a mixed content error on the map page. So, as any novice who has no clue what NOT to do, I thought I would start by renaming a folder in our custom design folders from "unirgy" to "_unirgy" to somehow see if I could force it to load the default map.phtml file. This caused a

Fatal error: Call to a member function children() on a non-object in 
/home/lynsecom/public_html/store/app/code/core/Mage/Core/Model/Config.php 
on line 901

I went back and changed the folder name back to it's original name, but this error keeps coming up. I cannot get to store admin either - the same error pops up. I am clueless where to start because I just do not have a strong grasp yet of how Magento works. I am appreciative of any help I can get at this point.

Answer 1

To get past this fatal error, I'd suggest disabling the module that was causing you trouble.

1. Navigate to /home/lynsecom/public_html/store/app/etc/modules/ and locate the module declaration file. It'll follow the naming convention [Package]_[Modulename].xml
2. In that xml file, find the <active>true</active> node and change it to <active>false</active>