Laravel + Vue Project Logical Error Fix

I've introduced a logical error in the backend of my Laravel + Vue project. I need a skilled developer to identify and fix this issue, and provide a clear explanation of the faulty line. The project is straightforward, but requires a keen eye for detail and solid experience with Laravel and Vue.

Ideal Skills:
- Proficient in Laravel and Vue.js
- Strong problem-solving and debugging skills
- Able to explain technical issues in a clear, understandable way