When i click magento adminpenal's
system>configuration The Error will caused.....
Fatal error: Class 'Mage_Facebookilike_Helper_Data' not found in C:\xampp\htdocs\magento\app\Mage.php on line 547
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I think in your extension/ code you are accessing a helper which is not defined like
So try to find out this type of code or declare the helper in your own config.xml of that extension as
<global> <helpers> <facebookilike> <class>Mage_Facebookilike_Helper</class> </facebookilike> </helpers> </global>