Hello, @Cordova Studios,
Could you please once read and follow the instructions written in this article: https://www.hostinger.com/tutorials/wordpress-jquery-is-not-defined#:~:text=jQuery%20Library%20Correctly-,What%20Is%20the%20jQuery%20Is%20Not%20Defined%20Error%3F,your%20JavaScript%20code%20loads%20incorrectly.%E2%80%9D Hope it will help.
Regards 8Themes Team.
