Unable to set the attribute

Solaivel_Solaichamy_(solaivelsolaichamy_-_(deleted

There is one application where we are using LAPI 9.1 version, which is working fine for LiveLink Instance 9.1.Here we are adding the document in to livelink instance.The same application we want to make works for adding the document in to LiveLink Instance 9.7.LAPI AddDocument method is working fine and it is adding the document too.but when it comes to add attribute it is throwing this below mentioned error:Unable to set the attribute value. The category is not assigned to the item specified in LLPath. (DMSLink: 33) Unable to set the attribute value. The category is not assigned to the item specified in LLPath. (DMSLink: 33).we are getting the error from this method:LL_ListNodes(session, "subtype = 133", 0, "DTree", lv_lng_objh_list, LL_PERM_SEE, LL_FALSE,lv_lng_objh_output_q) where all these parameters are holding some lum sum values.