Hello, dear, why is the exam platform for continuing education in Erjian always stuck? Reason: The system crashed or there were too many people logging in. Find another time to log in.

1. There is an error in the user name or password, and both the user name and password are wrong. It's easy to solve, just find the right one.

2. The school didn't sign up, which is troublesome and may not be admitted to this.