v3.1.0

1. Log in to WordPress as an administrator.
2. In the left menu, click Plugins > Add New.
3. On the Add Plugins page, search for Paymennt in the right search bar and the Paymennt plugin will appear.
4. On the plugin card, Click Install Now.
5. Once the plugin installation is complete, click Activate.
6. On activation the plugin will be ready to be configured.

See
https://docs.paymennt.com/docs/payment/ecomm/woocommerce#install-the-plugin