java.lang.String.toCharArray() issue while trying to schedule a batch job in SAP BODS

Hello Experts,

I am trying to schedule a batch job in management console of SAP Data services it is throwing the below error-

"while trying to invoke the method java.lang.String.toCharArray() of a null object loaded from local variable 'value' "

Please suggest how can I rectify this to schedule the jobs.

Thanks in advance !!!