Calendar not working after migration to dockerized otrs (coming from 6.0.0.29)

[alie2n]

Hi,
I tried a migration from a standalone otrs 6.0.29 installation to this docker container via the backup and restore method.
All in all this went quite smooth. I only hat to change the database credentials in my config files and had to call the db upgrade script to get a working login button.
But when I tried to access the calendar I always got an error, that I should take a look at the browser logfiles. There I find the javascript error: TypeError: $CalendarObj.fullCalendar is not a function

Do you have an idea what could cause this?

Cheers,
Nicki

[alie2n]

During the backup import and the subsequent starts I did not encounter any errors regarding the calendar. I only hat problems with my imported configuraiton containing the wrong database host and a missing db upgrade which had to be called manually.