Warning trying to access array offset on value of type bool for all called objects on the deliver report

[i1470s]

Warning trying to access array offset on value of type bool for all called objects on the deliver report

code attached below

works fine on desktop not on mobile

ios 18
I phone 14 pro max

<!-- (A) HEADER -->
<div class="flex mb">
  <!-- (A2) FROM & TO -->
  <div class="grow box">
    <div class="subtitle">DELIVER FROM</div>
    <div><?=CO_NAME?></div>
    <div><?=nl2br(CO_ADDRESS)?></div>
    <div>
      T: <?=CO_TEL?>
      E: <?=CO_EMAIL?>
    </div>
    <br>

    <div class="subtitle">DELIVER TO</div>
    <div><?=$order["d_name"]?></div>
    <div><?=nl2br($order["d_address"])?></div>
    <div>
      T: <?=$order["d_tel"]?>
      E: <?=$order["d_email"]?>
    </div>
  </div>

  <!-- (A3) ORDER ID, DATE, STATUS -->
  <div>
    <div class="box">
      <div class="subtitle">ORDER #</div>
      <?=$order["d_id"]?>
    </div>
    <div class="box">
      <div class="subtitle">DELIVERY DATE</div>
      <?=$order["d_date"]?>
    </div>
    <div class="box">
      <div class="subtitle">STATUS</div>
      <?=DELIVER_STAT[$order["d_status"]]?>
    </div>
  </div>
</div>

<!-- (B) ORDER ITEMS -->
<table class="list mb">
  <thead><tr>
    <th>Qty</th>
    <th>Item</th>
    <th>Unit Price</th>
    <th>Amount</th>
  </tr></thead>
  <tbody><?php foreach ($order["items"] as $i) { ?>
  <tr>
    <td><?=$i[3]?> <?=$i[2]?></td>
    <td>[<?=$i[0]?>] <?=$i[1]?></td>
    <td><?=$i[4]?></td>
    <td><?=$i[3] * $i[4]?></td>
  </tr>
  <?php } ?></tbody>
</table>

<!-- (C) NOTES -->
<div class="box">
  <div class="subtitle">NOTES</div>
  <?=nl2br($order["d_notes"])?>
</div>

<script>
window.addEventListener("load", window.print);
</script>```