Schedule set up on IMAC / IOS E caledar

ZOOM is currently being used in Japan in Japanese. I haven't made any special system changes or anything. However, the following occurred suddenly. In the past, in order for ZOOM schedule appointments to be reflected directly in the IOS calendar, I had to start ZOOM from IMAC's APPLICATION. This was working smoothly. However, all of a sudden, only the schedule I set up is in English, and I get an error message saying that I cannot import the file and cannot set up the schedule. I don't know why.