OwnDDNS - Delete OwnDDNS Account does not delete DNS Record

When i delete an OwnDDNS Acount it does not delete the DNS Record.
I must delete the DNS Record manually in the i-MSCP database table "domain_dns" and in Bind9 config then it is for real deleted.

My Config:
Ubuntu 12.04
i-MSCP 1.1.13
OwnDDNS Plugin 0.0.3

@TheCry Many thanks, it works perfect!