You should get an administrator as others have said. Removing libkeyutils has likely broken several of your daemons which are linked against it. This is a legitimate library.اگر جواب بده خوبه
What is the full yum output, the above only says there an error but the python traceback should show what that error is.
You can reinstall libkeyutils by directly fetching the RPM from your OS and installing it that way.
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امیدوارم امشب تموم بشه با خیال راحت بخوابم :دی