Выполни в консоли
<?php
$collection = $modx->getCollection("modResource", [
"content:LIKE" => '%&lt;p&gt;%'
]);
foreach ($collection as $res) {
$res->content = str_replace("&lt;p&gt;", "", $res->content);
$res->save();
}
спс
Nikolay
Sergey_K
alexey1m
Иван
Алексей
Pavel
🙈 PG
Danil
Eugene
Алексей