When i upload a plug-in, i get the error below. At other plug-ins, i get different fatal error. My release is and I cant upload plug-ins.

Fatal error: Class 'SSTech_Ordertracking_Helper_Data' not found in /home/jellysepeti/public_html/app/Mage.php on line 547

3 Answers 3


Try clearing cache and check again.
Then check if the file Data.php is present inside app/etc/[local or community]/SSTech/Ordertracking/Helper/
Then check if the helper configuration is there in the app/etc/[local or community]/SSTech/Ordertracking/etc/config.xml or not.


First try to clean your cache files in var/cache/* . It seems like SSTech/Ordertracking/Helper/Data.php has not been found. Make sûre the file exist


Also check if Compilation is enabled and if it is - disable it. You can do this:

  1. in the admin panel -> System -> Tools -> Compilation -> Disable


  1. in the files - includes/config.php - comment all lines (i.e. #define...)

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.