Pirated versions cannot receive critical security patches or compatibility updates for new macOS versions.

Instead, you can obtain a legitimate copy and technical support directly from the developer or explore free, built-in alternatives for macOS. Official Ways to Get Stellar Partition Manager

MacOS includes a powerful native tool that performs most of the functions of third-party partition managers for free:

Get Stellar Partition Manager Registration/Activation Key Online

You can download and purchase a legal serial key directly from Stellar Info .

If your goal was actually data recovery rather than partition management, the Stellar India site provides guides on activating their recovery tools properly. Free Built-in Alternatives for Mac