As the title goes need to upgrade php from 7.4 to 8.3 without affecting the website design or functionality.Note these constraints:1. Theme is an old WP Tesla Narcos theme.2. Several plugins have been used for customisation, functionality and optimisation.- Woo Commerce and related pluings- Payment gateway- Mailchimp3. There is some bit of custom code for styling, CSS, affecting various screens.4. Theme uses WP Bakery page builder.Website: indianearby.com Current PHP: 7.4WP Version: 6.8.3