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Thunderbird calendar error messages
Hi, I don't use the calendar (and don't want to start using it ;-)). However, I keep getting error messages in Thunderbird about the calendar, like this one:
An error occurred when writing to the calendar calendar! Please see below for more information. Error code: MODIFICATION_FAILED Description: If you're seeing this message after snoozing or dismissing a reminder and this is for a calendar you do not want to add or edit events for, you can mark this calendar as read-only to avoid such experience in future. To do so, get to the calendar properties by right-clicking on this calendar in the list in the calendar or task view.
This message appears always and several times when I start Thunderbird and also when the computer wakes up (after being suspended), Clicking OK or the X doesn' t help. I marked the calendar read-only as mentioned in the error message, this didn't help. I also disabled the calendar, this didn't help. Can anyone tell me how to get rid of these annoying messages? Thanks!