Error when updating openPlotter (from 1.1 to 1.2) and OpenCPN1.2

[Sailabout]

When updating OpenPlotter from 1.1. to 1.2, I get the following

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UPDATING PACKAGE LIST…
 
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Fetched 11.7 MB in 24s (467 kB/s)
Reading package list . . . Error!
E: Encountered a section with no Package: header
E: Problem with MergeList /var/lib/dpkg/status
E: The package lits or status file could not be parsed or opened
 
#### ERROR. ABORTING, PRESS ENTER TO EXIT ####


I get exactly the same error when updating OpenCPN and OpenCPN plugins.