Thunderbird 60 Lightning not existing anymore

Today I had an update from Thunderbird 52 to 60 and so far anything works fine. But now the Lightning calendar is not working anymore. In the add-ins it is shown as installed but I have no access anywhere to my calendar. Does anybody has the same problem and any solution?

Greetings and thanks for the help

Sorry, I do not have an answer for you, but you got my attention. Nothing I have has updated, and I learned it will not until Thunderbird 60.1. (Debian buster is still at 52.9.1.)

You may wish to look at the Release Notes for Thunderbird 60.0, if you have not done so already. It is supposed to update the calendar, but there is also a calendar troubleshooting article at the end. I hope it can help you.

If interested, Mozilla skipped Thunderbird 60.1 and went to 60.2.1. That should update. I am not sure when we will see this for PureOS; it is not in Debian buster.