Lost Folders

Installed an update on Oct. 24th. I’ve lost the contents of all my folders, including Contacts, Stored emails, Sent, etc. What has happened? I’m devastated. Current version is 7.0.27943.0

Hello Daphne,
what version did you upgrrade from? Was it version 6? If so, have you tried importing your data using the File>Import>Import from eM Client 6 option?
Or did your accounts stay and just your data disappeared?
If so, what accounts do you have set up?
Is your data still on the server?