Laravel developer required to resolve some issues in my current project

I am in need of a Laravel developer who can resolve some functionality issues in my current project. The ideal candidate should have experience in Laravel framework and be able to work quickly to resolve the issues within a week. As there is no documentation available for the project, the developer should be able to work autonomously. The specific issues that need to be resolved include:

- Payment gateway integration issues
- User registration and login issues
- Data input and output issues

The developer should be able to identify and fix any other functionality issues that may arise during the project.