If you need to set a package as installed, or uninstalled due to issues. You can use the following file. It will update the rows in the database that control the packages and allow you to attempt to install/uninstall the mod again. You can find the file here. Upload this file to your main folder, where SSI.php and Settings.php is located. Then call the file in your browser, yourforumurl.com/Fix_packages.php and from there you can select the package and change it to installed or uninstalled.