[CentOS] logwatch from cronjob

Hello,
the last 2-3 days i have a saden problem with logwatch wich i call 
through a cron job.
when i ran the cronjob i get this continues error for the script :

----
Use of uninitialized value in concatenation (.) or string at 
/etc/log.d/scripts/shared/applystddate line 43, <STDIN> line 26062.
Use of uninitialized value in concatenation (.) or string at 
/etc/log.d/scripts/shared/applystddate line 43, <STDIN> line 26062.
Use of uninitialized value in concatenation (.) or string at 
/etc/log.d/scripts/shared/applystddate line 43, <STDIN> line 26062.
......
Use of uninitialized value in concatenation (.) or string at 
/etc/log.d/scripts/shared/applystddate line 43, <STDIN> line 27432.
Use of uninitialized value in concatenation (.) or string at 
/etc/log.d/scripts/shared/applystddate line 43, <STDIN> line 27433.
Use of uninitialized value in concatenation (.) or string at 
/etc/log.d/scripts/shared/applystddate line 43, <STDIN> line 27433.
Use of uninitialized value in concatenation (.) or string at 
/etc/log.d/scripts/shared/applystddate line 43, <STDIN> line 27433.
Use of uninitialized value in concatenation (.) or string at 
/etc/log.d/scripts/shared/applystddate line 43, <STDIN> line 27434.
--------

before that logwatch was working perfect

any ideas ?