Some AbanteCart versions need a corrected package_manager file to work correctly. Select the AbanteCart version you are using and follow the directions to replace the file.
You must replace the file for each of the listed versions with each AbanteCart update – eg. currently using 1.2.6 and have the replacement file – when you update to 1.2.7, you will need to replace with the patch file for 1.2.7.
Steps to replace the file:
1. Download the file according to your AbanteCart Version:
2. Login to Cpanel, click on public_html/your_site/core/lib, upload the package_manager.php file there or
3. Open your FTP Client, click on public_html/your_site/core/lib, upload the package_manager.php file there.