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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:

QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave.
I/O warning : failed to load external entity "/home/benjamin/.qalculate/eurofxref-daily.xml" krunner(17571)/libplasma Plasma::Package::isValid: Could not find required file mainscript

How can this be fixed?

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