Illegal String offset 'tag' in tpl_checkout_stacked.php addon

[Coins2012]

Did an Apache upgrade on my server which upgraded my PHP to version 5.6, now getting the below error.

10-Feb-2019 21:12:41 America/New_York] PHP Warning: Illegal string offset 'tag' in /home/XXXXXX/public_html/includes/templates/ayd_responsive/templates/tpl_checkout_stacked.php on line 109

below is line 109

<label class="inputLabel"<?php echo ($field['tag']) ? ' for="'.$field['field']['tag'].'"': ''; ?>><?php echo $field['title']; ?></label>

Any idea how to fix this, I know I am due for ZC upgrade but if anyone could suggest a fix to this I would appreciate it.

[swguy]

<?php
if (!empty($field['tag'])) { 
   echo '<label class="inputLabel"' . ' for="'.$field['field']['tag']. '>'; 
} else {
   echo '<label class="inputLabel">'; 
}
echo $field['title']; 
?></label>

[Coins2012]

<?php
if (!empty($field['tag'])) { 
   echo '<label class="inputLabel"' . ' for="'.$field['field']['tag']. '>'; 
} else {
   echo '<label class="inputLabel">'; 
}
echo $field['title']; 
?></label>

Thank you but I am new to this, do I replace line 190 with the code you provided?

[swguy]

You remove line 109 (the one you posted) and add in my code in its place. Then test carefully.