WordPress Plugin Modifications

Hello,

I’m using WordPress alongside WooCommerce Lottery to create a raffle website.

The plugin creates different messages depending on different actions the user makes, and I want to be able to edit these messages.

For example:

[If I run out of stock](https://imgur.com/n864gCv)

[If you try to purchase more items than there are in stock](https://imgur.com/K9VTSey)

[If you omit fields when paying](https://imgur.com/PvgNivy)

Now I can edit the style of the message using CSS, but I’m assuming there’s a php or JS file somewhere that creates the actual message content? How can I find out where this file is?

Thanks!