Hi!
I’ll surely fix your Bad credentials System config Magento 2 / auth.json.
I have 4+ years of experience in Magento 2 developing, designing and customizing websites and web stores.
I also have working experience in both frontend and backend technologies as PHP, MySQL, HTML, CSS, JavaScript, etc.
I’ll surely do this work for you and will provide you with my best expertise in Magento.
Kindly send me a quick message so we can discuss in detail over chat and work accordingly.