If you are using a Mac and experiencing an installation error while attempting to install Nexon Plug stating, "The Installation Failed..." (as shown on the screenshot below), the current version of your macOS may be outdated.
It is essential to ensure that your macOS is running the latest version. Please ensure to update your system to at least macOS 11 Big Sur or a more recent version to resolve the issue.
If you are still facing difficulties while trying to install Nexon Plug after updating your macOS, please contact Nexon Player Support. Follow this article to learn how.