Error 5 when sending an IDoc

Hi Experts ,

while loading hierarchy data , we are geeting below mentioned error .i went through few thread where members suggested to activate or restore Source system .

but i have issue while loading Hierarchy data alone , i am able to load other data in for transaction/text/attribute data sources .

Please provide me your valuable inputs ,

Your response Would be highly appreciable  ..

Error in send SEND_HIERARCHY_30 of the hierarchy table

Error 5 when sending an IDoc

Regards ,

Hari