Invalid marker content in modules/addressbook/utils/extractor.php

I got the following messages when trying to translate the addressbook module

Invalid marker content in modules/addressbook/utils/extractor.php : line 511
Invalid marker content in modules/addressbook/utils/extractor.php : line 519

and after that for each module I try to translate I get the following error message :

warning: Invalid argument supplied for foreach() in ...\modules\live_translation\lt_extractor.module on line 59.