I have a tableview with a search display controller. It has been working fine in the past, but recently has started crashing for certain search results. Here my code searches a Golfer based on their Name, Age and Handicap. The data is correctly loaded into the table, I can access and drill down to receive further information. However when I type in a search query for either Name or Age, the app crashes, while the Golfers Handicap is returned fine.

Note: dataSouceArray is the data source for the tableview, dataSourceArrayCopy is the mutable copy of the data used to add and remove objects in the search filter.

- (void)filterContentForSearchText:(NSString*)searchText scope:(NSString*)scope
{
 /*
  Update the filtered array based on the search text and scope.
  */

 [self.dataSourceArrayCopy removeAllObjects]; // First clear the filtered array.

 /*
  Search the main list for products whose type matches the scope (if selected) and whose name matches searchText; add items that match to the filtered array.
  */
 for (Golfer *golfer in dataSourceArray)
 {
  if ([scope isEqualToString:@"Name"] || [golfer.golferName isEqualToString:scope])
  {
   NSComparisonResult result = [golfer.golferName compare:searchText options:(NSCaseInsensitiveSearch|NSDiacriticInsensitiveSearch) range:NSMakeRange(0, [searchText length])];
            if (result == NSOrderedSame)
   {
    [self.customerListCopy addObject:golfer];
            }
  }
  if ([scope isEqualToString:@"Age"] || [golfer.golferAge isEqualToString:scope])
  {
   NSComparisonResult result = [golfer.golferAge compare:searchText options:(NSCaseInsensitiveSearch|NSDiacriticInsensitiveSearch) range:NSMakeRange(0, [searchText length])];
            if (result == NSOrderedSame)
   {
    [self.dataSourceArrayCopy addObject:golfer];
            }
  }
  if ([scope isEqualToString:@"Handicap"] || [golfer.golferHandicap isEqualToString:scope])
  {
   NSComparisonResult result = [golfer.golferHandicap compare:searchText options:(NSCaseInsensitiveSearch|NSDiacriticInsensitiveSearch) range:NSMakeRange(0, [searchText length])];
            if (result == NSOrderedSame)
   {
    [self.dataSourceArrayCopy addObject:golfer];
            }
  }
 }
}  
- (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString
{
    [self filterContentForSearchText:searchString scope:
  [[self.searchDisplayController.searchBar scopeButtonTitles] objectAtIndex:[self.searchDisplayController.searchBar selectedScopeButtonIndex]]];

    // Return YES to cause the search result table view to be reloaded.
    return YES;
}


- (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchScope:(NSInteger)searchOption
{
    [self filterContentForSearchText:[self.searchDisplayController.searchBar text] scope:
  [[self.searchDisplayController.searchBar scopeButtonTitles] objectAtIndex:searchOption]];

    // Return YES to cause the search result table view to be reloaded.
    return YES;
}

Any help would be appreciated, thank you for taking the time to read this.