How can I get past this error *PLEASE HELP*...

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renamed '/etc/default/bsdmainutils' -> '/etc/default/bsdmainutils.dpkg-remove'
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dpkg: warning: unable to delete old directory '/etc/calendar': Directory not empty
Selecting previously unselected package bsdextrautils.
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Nothing to restart.
sleep: cannot read realtime clock: Invalid argument
dpkg: error processing package libc6:amd64 (--configure):
installed libc6:amd64 package post-installation script subprocess returned error exit status 1
Errors were encountered while processing:
libc6:amd64
E: Sub-process /usr/bin/dpkg returned an error code (1)