translation function disappeared

I have enabled the translation function and have been using it for many many times.

However, it suddenly disappeared when I was scheduling a meeting last Sat.

I have checked that the translation function is still enabled and I have already updated my Zoom to the latest version.

When I start a new meeting, I cannot assign someone to be the translaor. Also, I cannot see the "earth logo" in the Zoom meeting.

I checked my recurring meeting and the "earth logo" still exist.

If anybody knows the solution, please help. I need the translation function urgently. Thanks!