If you want to use it in a repeater then you will need to code it differently so that it works with each item and not all of the repeater.
https://www.wix.com/corvid/reference/$w.Repeater.html
You can see more in previous forum posts here.
https://www.wix.com/corvid/forum/community-discussion/adding-distinct-animations-to-each-item-in-a-repeater
Or on outside websites about it here.
https://www.vorbly.com/Vorbly-Code/WIX-REPEATER-ANIMATE-INDIVIDUAL-ITEMS
https://support.totallycodable.com/en/article/create-animation-on-one-repeater-item-at-a-time-using-wix-code