PHP8

diff --git a/DataObjects/Core_email.php b/DataObjects/Core_email.php
index 1b08773..02ce342 100644 (file)
--- a/DataObjects/Core_email.php
+++ b/DataObjects/Core_email.php
@@ -294,7 +294,7 @@ class Pman_Core_DataObjects_Core_email extends DB_DataObject
                 $html->item(0)->appendChild($element);
             }
             
-            $this->plaintext = str_replace("{unsubscribe_link}", $unsubscribe, $this->plaintext);
+            $this->plaintext = str_replace("{unsubscribe_link}", $unsubscribe, empty($this->plaintext) ? '' : $this->plaintext);
         }