while doing a dynamic analysis i am getting this erro can u please sugget how to fix it
/////////////////////////////////////////
ERROR id : 258
** ERROR TH GROUP
NON EXISTING RBODY 44841
 
 
ERROR id : 258
** ERROR TH GROUP
NON EXISTING PART 16
 
 
ERROR id : 258
** ERROR TH GROUP
NON EXISTING PART 17
 
 
ERROR id : 258
** ERROR TH GROUP
NON EXISTING PART 18
 
 
ERROR id : 258
** ERROR TH GROUP
NON EXISTING PART 19
////////////////////////////
Salim khan