Krunner does not run after sleep or screen-saver

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http://askubuntu.com – After the Kubuntu goes into sleep or after the screen turns dark when idle, KRunner fails to run. Whether I try to launch Krunner from shortcuts, terminal or menu, there is no response. When running from Terminal, the following message is returned The issue is not the script but Krunner itself, which does not run after sleep or screen-saver, no matter how i try to start it up. How can this be fixed? (HowTos)