I accidently deleted the .ecryptfs folder, also the .private folder. Cant login anymore. Just as guest. How can I restore to the system before I deletetd those fodlers?
Did you record your randomly generated mount passphrase? It would be 16 or 32 characters of [0-9a-f]. If you have that long, random passphrase, it's relatively easy to recover. If you don't have that, there's no chance of recovery.
If you have your randomly generated mount passphrase, you'll recreate your .ecryptfs directory.