9904: Errors printing graphical report ancestor tree

gramps/plugins/drawreport/ancestortree.py

@@ -231,6 +231,7 @@ class MakeAncestorTree(AscendPerson):
         myself.text = self.calc_items.calc_person(index,
                                                   indi_handle, fams_handle)
 
+        if indi_handle:
             myself.add_mark(self.database,
                             self.database.get_person_from_handle(indi_handle))
 
@@ -239,7 +240,7 @@ class MakeAncestorTree(AscendPerson):
         #make the lines
         indx = index[LVL_GEN]
         self.lines[indx] = myself
-        if indx > 1:
+        if 1 < indx < 8:
             if self.lines[indx-1].line_to is None:
                 line = LineBase(self.lines[indx-1])
                 self.lines[indx-1].line_to = line