Dear Wolfgang, Thank you very much for your reply! I have removed the things you have suggested, then added the repository mentioned in kde.org and after it have updated the Xapian and all akonadi packages. Now finally I can dead my E-mails and work normally with Contact! I am crossing fingers for guys at KDE to fix this nasty issue till the new Tumbleweed update. Thank you very much in helping me. Hopefully it may help to others who will read this information. With best regards,