Why the zoom not asking the passcode?

[Yeajin]

 I have set up the zoom call, and when we tried to call with the dial-in numbers and meeting ID and passcode, the announcement asked me to enter the meeting ID and then have no answer.

Normally it used to ask me the meeting ID, participant ID and then the passcode so that I can join the zoom via call.

Why wasn't it working??

I have tested with another zoom link I have set up, but it worked well. but the one I have set up for 5:00 pm KST didn't work.