Error no AcyMailing 3.8.0

Warning: Invalid argument supplied for foreach() in /home/../../public_html/components/com_acymailing/views/user/tmpl/modify.php on line 15

<?php if(acymailing_level(3)){

				foreach($this->extraFields as $fieldName => $oneExtraField) {

					echo '<tr id="tr'.$fieldName.'"><td width="150" class="key">'.$this->fieldsClass->getFieldName($oneExtraField).'</td><td>';

					if(in_array($fieldName,array('name','email')) AND !empty($this->subscriber->userid)){echo $this->subscriber->$fieldName; }

					else{echo $this->fieldsClass->display($oneExtraField,@$this->subscriber->$fieldName,'data&#91;subscriber&#93;&#91;'.$fieldName.'&#93;'); }

					echo '</td></tr>';

				}

			}else{ ?>

<?php }
			?>