Not generating export config file

I am creating a script to export configuration:

/export file=config.rsc;

When running the script is not generating the file, but it’s working from terminal.
What is wrong?

MikroTik RB751U-2HnD, 6.1

What owner and policies do you have set in “/system scheduler” and “/system script”?

/system scheduler
print detail

/system script
print detail

Mine shows:
owner=admin
policy=ftp,reboot,read,write,policy,test,winbox,password,sniff,sensitive

All available policies turned on.

name="config" owner="admin" 
policy=reboot,read,write,policy,test,password,sniff,sensitive 
last-started=jul/08/2013 00:34:00 run-count=9 
source=/export file=config.rsc



name="config" start-date=jan/01/1970 start-time=07:30:00 interval=1m 
on-event=config owner="admin" 
policy=reboot,read,write,policy,test,password,sniff,sensitive 
run-count=6 next-run=jul/08 00:32:00