No way... I screwed up!
When I made an agenda for yesterday, I partially copied last year's agenda.
We changed the passcode once since the original agenda was made.
I thought I double checked when I finish making the new agenda.
But.... I didn't obviously.
The guest who was supposed to attend last night could not join in.
Guests, if you read this, I do think about my mistakes.
Please try to visit us again. I would appreciate it.