nextcloud18.02 after update calendar to 2.0.2, it doesn't work

I have update nextcloud from 17.0.4 to 18.0.2, and update calendar to 2.0.2, and it success, but then the calendar doesn’t work, click left button, no event page appear,and left panel Keep spinning,so anybody know how to deal the Situation, thanks


finds the error appeard in chrome devtools->console
so how to solve the errors,thanks