You can check if a PO file is valid with the following command:

        msgfmt -c -o /dev/null <po file>
      

The following errors were found in blobandconquer 's PO files:

gettext: locale/messages.pot:1364: duplicate message definition...
locale/messages.pot:732: ...this is the location of the first definition
locale/messages.pot:1370: duplicate message definition...
locale/messages.pot:729: ...this is the location of the first definition
locale/messages.pot:1382: duplicate message definition...
locale/messages.pot:597: ...this is the location of the first definition
locale/messages.pot:1385: duplicate message definition...
locale/messages.pot:600: ...this is the location of the first definition
locale/messages.pot:1394: duplicate message definition...
locale/messages.pot:594: ...this is the location of the first definition
locale/messages.pot:1397: duplicate message definition...
locale/messages.pot:858: ...this is the location of the first definition
locale/messages.pot:1400: duplicate message definition...
locale/messages.pot:861: ...this is the location of the first definition
locale/messages.pot:1403: duplicate message definition...
locale/messages.pot:864: ...this is the location of the first definition
locale/messages.pot:1406: duplicate message definition...
locale/messages.pot:870: ...this is the location of the first definition
locale/messages.pot:1409: duplicate message definition...
locale/messages.pot:873: ...this is the location of the first definition
locale/messages.pot:1412: duplicate message definition...
locale/messages.pot:867: ...this is the location of the first definition
locale/messages.pot:1415: duplicate message definition...
locale/messages.pot:876: ...this is the location of the first definition
locale/messages.pot:1424: duplicate message definition...
locale/messages.pot:879: ...this is the location of the first definition
locale/messages.pot:1430: duplicate message definition...
locale/messages.pot:882: ...this is the location of the first definition
locale/messages.pot:1451: duplicate message definition...
locale/messages.pot:1449: ...this is the location of the first definition
locale/messages.pot:1454: duplicate message definition...
locale/messages.pot:1449: ...this is the location of the first definition
locale/messages.pot:1457: duplicate message definition...
locale/messages.pot:1449: ...this is the location of the first definition
locale/messages.pot:1469: duplicate message definition...
locale/messages.pot:418: ...this is the location of the first definition
locale/messages.pot:1505: duplicate message definition...
locale/messages.pot:849: ...this is the location of the first definition
locale/messages.pot:1586: duplicate message definition...
locale/messages.pot:852: ...this is the location of the first definition
msgfmt: found 20 fatal errors
      

Please ask the translator (identified by the Last-Translator field in the PO file), the language team (identified by the Language-Team field) or debian-i18n for a fix.