Error : No Entry for Benefit Plan when saving the data in Infotype 168

Hi

I have been recieving the error No Entry for Benefit Plan LFB2 when i try to the chenges in Infotype 168 , i checked the note 1012394 which is for the same error but the solution they provided was apply support pack , but our SP is higher than they specified.

Please help , this is a critical issue.

Help will be surely rewarded.