Instead of:
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
Try:
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if this does not work then, also add:
if (cell == nil) {
cell = [[customCell alloc] init];
}