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


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.

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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

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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...)
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