get preg_replace error with YAMS in Modx

I have installed YAMS in my Modx installation. Run version 1.0.5 of Modx and 1.1.9 YAMS plugin.

It works on my clean installation of modx + yams but not on my existing site with content. Are the开发者_如何学编程re any problem with the TV´s?

I use both versions of MODX and YAMS with the latest version of PHP and I don't get any preg_replace error. But it can be a problem with different versions of PHP in different servers and with other snippets or plugins involved with YAMS