ORA-06502: PL/SQL: numeric or value error: character string buffer too small

Hi,

The user is getting the below error when he is trying to submit the child reimbursement from employee self service,

ITEM DETAILS:
Item Type = HRSSA
Item Key = 492029

ERROR DETAILS:
Error Name = -6502
Error Message = ORA-06502: PL/SQL: numeric or value error: character string buffer too small
Error Stack =
Wf_Engine_Util.Complete_Activity(HRSSA, 492029, 689763, Child Name1 :Mr. ِAhmad Salah )
Wf_Engine_Util.Execute_Activity(HRSSA, 492029, 689763, RUN)
Wf_Engine_Util.Process_Activity(HRSSA, 492029, 689763, 50)
Wf_Engine_Util.Complete_Activity(HRSSA, 492029, 689730, #NULL)
Wf_Engine_Util.Execute_Activity(HRSSA, 492029, 689730, RUN)
Wf_Engine_Util.Process_Activity(HRSSA, 492029, 689730, 50)
Wf_Engine_Util.Complete_Activity(HRSSA, 492029, 689755, Y)