Homeworkaider.com review: account blocked!

I have been a tutor at Homework Aider for 9 months, I use this site to earn money through writing. They blocked my account over a sudden and when I emailed the support they replied that I had done Five consecutive assignments that were poorly written. According to my record, only one client complained of poor work. Why would they close my after 1k positive reviews from clients? here is the link to the website https://homeworkaider.com/
Thank you!