You generally need a clean installation of eFootball PES 2021 (PC version) and the Sider tool to run these mods.
It updates the base PES 2021 game with the rosters, kits (uniforms), and transfers for the 2021/2022 season , bridging the gap for players who didn't want to switch to the newer eFootball titles. Download PES UPDATE SEASON 2021 2022 V18 AIO part2 rar
The full V18 AIO collection can take up significant disk space. While the base game requires 40 GB , heavy patches like this can easily double that requirement. You generally need a clean installation of eFootball