BODS job errored out with BCD_OVERFLOW error

Hi Guys,
 
I have a simple job that loads the data from the SAP R/3 tables like EKKO,EKPO into a target FACT table.It loads data for a specific date range.So this job was working fine for a few days.But yesterday when I ran the job it errored with error message "Internal session terminated with a runtime error BCD_OVERFLOW (see ST22)".I don't understand why this is happening.Please tell me how can I fix the error.The  below the  screenshot  of the  error message.Please help me.