Event returned_null: Function "old_xml_search_child" returned NULL value (checked 8 out of 9 times) [model]
Event var_assigned: Variable "child" assigned to NULL return value from "old_xml_search_child"
Also see events: [var_assigned][dereference]

1006 	 		child = old_xml_search_child (calendars, "day-types");
1007 	
1008 			/* Insert hardcoded days. */
1009 			g_hash_table_insert (parser->day_hash,
1010 					     GINT_TO_POINTER (MRP_DAY_WORK), 
1011 					     mrp_day_ref (mrp_day_get_work ()));
1012 			g_hash_table_insert (parser->day_hash,
1013 					     GINT_TO_POINTER (MRP_DAY_NONWORK),
1014 					     mrp_day_ref (mrp_day_get_nonwork ()));
1015 			g_hash_table_insert (parser->day_hash,
1016 					     GINT_TO_POINTER (MRP_DAY_USE_BASE),
1017 					     mrp_day_ref (mrp_day_get_use_base ()));
1018 			
1019 			/* Read day-types */

Event dereference: Dereferencing NULL value "child"
Also see events: [returned_null][var_assigned]

1020 			for (day = child->children; day; day = day->next) {
1021 				old_xml_read_day_type (parser, day);
1022 			}