The only choice you can have is to update your audacity and download the vst plugins to check the version of your audacity, go to the help menu and click about audacity or, you can update it to the latest version by clicking the check for updates and it will redirect you to the download page. Download plugins para audacity. Along with the download, users can also download plug-ins for free from the website as well audacity can perform better if you download the missing plug-ins and libraries for the software while working with the software, you will find that you might need some additional extensions to add some certain effects.