No Dunnings Generated -- URGENT!!

Hi all,

We have applied the latest IEX RUP patch and after that the Send dunning program does not generate the Dunning letters.

Below is the log details. it seems like didn't call the send dunning process. can someone help me out????

SEND_DUNNING_CONCUR dunning_plan_id = 10060
CORRESPONDENCE DATE         : 2013/03/15 00:00:00
PARENT REQUEST ID           :
DUNNING MODE                : DRAFT
SINGLE STAGED LETTER        : N
PROCESS ERRORED RECORD ONLY :
NUMBER OF WORKERS           :
CUSTOMER NAME LOW           :
CUSTOMER NAME HIGH          :
ACCOUNT NUMBER LOW :
ACCOUNT NUMBER HIGH :
BILLTO LOCATION LOW :
BILLTO LOCATION HIGH :
Org Id:201
l_running_level : BILL_TO
l_business_level : BILL_TO
define_ou_running_level : Y