zentao/extension/ipd/user/ext/lang/en/bizext.php

<?php
$lang->user->expireWarning = "<p style='color:yellow'>Your license will expire in %s days. Please renew it.</p>";

$lang->user->noticeUserCreate = "The limited number of users is %maxcount%, and the number of added users is %usercount%, which will exceed the limit. Please clear the redundant users.";