DHCPD server not working

I am running dhcpd on qnx 6.5.0

after starting dhcpd application it shows error like

Internet Software Consortium DHCP Server V3.0pl2
Copyright 1995-2003 Internet Software Consortium.
All rights reserved.
Wrote 0 deleted host decls to leases file.
Wrote 0 new dynamic host decls to leases file.
Wrote 0 leases to leases file.
commit_leases: unable to commit: Function not implemented
Listening on Socket/wlan0/
Sending on Socket/wlan0/

how to solve this error anyone used/faced errors like this, Give some suggestions to me.
Thanks in advance