NCP backup Error

when I run the nc-backup from ncp-config I get following Error:

Running nc-backup
/usr/local/etc/ line 130: echo: write error: Bad message
check free spaceā€¦
tee: /var/log/ncp.log: Bad message
Maintenance mode enabled
backup databaseā€¦
backup filesā€¦

I hope my backups are complete and not corrupted.

My /var/log/ncp.log is empty. line 130:
echo ā€œ[ $ncp_app ]ā€ >> $log