[Plugin: WP-o-Matic] Cron job is runing but nothing happend

I use WP-O-Matic to get my feeds on my blog.
But when i fetch by hand the frequency time goes back to what I told to.
When I use the link to **/**/**cron.php?code=***** then nothing happend or when I put it in to the cron job at my host nothing happend either.

The log say’s in all way running crob job. Only when I fatch by hand evrething works.

How can I solve this problem.