fixed "strtr(): Passing null to parameter Shardj#1 ($string) of type …

…string is deprecated"

library/Zend/Mail.php

@@ -685,7 +685,7 @@ public function setFrom($email, $name = null)
         }
 
         $email = $this->_filterEmail($email);
-        $name  = $this->_filterName($name);
+        $name  = $this->_filterName($name ?? '');
         $this->_from = $email;
         $this->_storeHeader('From', $this->_formatAddress($email, $name), true);