[ubuntu] Every time when i open my Update-Manager Im getting this error...please fix this

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http://ubuntuforums.org – Could not initialize the package information An unresolvable problem occurred while initializing the package information. Please report this bug against the 'update-manager' package and include the following error message: 'E:Encountered a section with no Package: header, E:Problem with MergeList /var/lib/apt/lists/www.bashterritory.com_pytube_releases_en, E:The package lists or status file could not be parsed or opened.' (Hardware)