update-manager - en to unknown language translation catalogue (3 entries)

en: Could not initialize the package information
target: Could not initialise the package information

en: An unresolvable problem occurred while initializing the package information.
    
    Please report this bug against the 'update-manager' package and include the following error message:
target: An unresolvable problem occurred while initialising the package information.
    
    Please report this bug for the 'update-manager' package and try to include the following error message:

en: Could not calculate the upgrade
target: Could not determine the upgrade
