With over four years of experience in web development, I am well-versed with the technologies required for your project. As a Full-Stack developer, I have extensively worked with Flask, VueJS, SQLite, Redis, and Celery. I am confident in rectifying errors, including user authentication, song retrieval, playlist management, and ensuring seamless integration with the SQLite database - all of which are aligned with the specific challenges faced by your music streaming web application.
One aspect where I stand out is my speed in delivering quality work. Understanding your time constraints, I assure you that the rectification process will be completed within 1-2 days without compromising the quality. My proficiency in JavaScript will also come in handy for fixing frontend issues like search functionality and redirection.
In addition to addressing the errors mentioned explicitly in the project description, I will proactively evaluate and optimize any other areas that might require attention in your application. Going beyond just fixing errors, I will provide detailed documentation of all the fixes made which will serve as a valuable resource for any future modifications or enhancements needed on the project.