By 2021, Waves was already on (released late 2020), and later v13 (2021) and v14 (2022). So v9 r15 in 2021 was already several years obsolete.
Modern Waves installers (v10+) use Waves Central. Mixing cracked v9 with legit newer plugins often breaks everything. waves all plugins bundle v9 r15 windows setup free 2021 free