SC--- Dump when I use wrong WBS element

Hi SRM gurus,

Can You plase give is there any OSS note for the following dump or solution if any.

I have maintained by mistake wrong WBS element

Example : Correct WBS is E-PTHK.CK.01

Entered as E-PTHKC.CK.01 in this case getting Dump.

Entered as E-PTHK.CK.02 in this case getting std Error as " No WBS element Exist"

Thanks in advance