Login Failed you cant use facebook to log into this app

[Himanshu-Kumar-Partsavatar]

Previously on my website fb login was working but now it throwing this error.
Any Idea ?

[moonman239]

Facebook may have switched your app to "Login for Business." You can temporarily switch it back in your App Dashboard.

[chaudev]

Facebook có thể đã chuyển ứng dụng của bạn sang "Đăng nhập dành cho doanh nghiệp". Bạn có thể tạm thời chuyển nó trở lại trong Bảng điều khiển ứng dụng của mình.

I had the same problem, I tried everything and FB forced me to verify the business. I verified the business but they still said in the app that I was "not verified". FB is getting worse and worse!