Additional folders in Thunderbird window. Problem with import.
Hello. I have installed the newest version of Thunderbird- 128.0.1esr, but my Thunderbird was not working properly. So, I installed older version- 115.13.0. But after this installation and after creating a new profile for my account, I have these two issues. First- there are some additional folders in my home page (image 1)- I cannot delete or move them. Also, I don't have my old e-mails- both in "Inbox" and Sent folders. I can't also import them from another profile, because there is an error (image 2 and 3).
What should I do? Uninstall and install thunderbird again? Try to import my archives some another way? I would like to have 115.13.0 version.
I appreciate your help, Martyna