Install Player-animator%2c Version 0.9.9 Or Later. ((full)) Info

Drag and drop the downloaded player-animator-x.x.x.jar file into this folder.

Often the first to receive updates. Check the playerAnimator versions page to find version 0.9.9 or higher that matches your Minecraft version (e.g., 1.19.2, 1.20.1). install player-animator%2C version 0.9.9 or later.

Visit a reputable modding site to find the "0.9.9 or later" requirement. Drag and drop the downloaded player-animator-x