Hello,i hope everyone has a nice day.I would need your guys' help.So recently i installed an app called
Sophia here from Shopify. Welcome to the Shopify Community!
Have you tried contacting the app developer? You can find their email address on their App Store page here under Support or simply click "Get support" on that page or in your admin under Apps to send them a message. I recommend asking them about the layout first as there might be something they can do to ensure that the app code doesn't interfere with the layout of your theme.
Since you're using one a the free themes from Shopify, adjusting the layout of the Debut theme may be something that our Theme Support team can assist you with if you have remaining design time on your account. Please let me know what the Product Lookup Form app developers say when you reach out to them and I'd be happy to put you in touch with the Theme Support team if you have a customization request after that.