an unknown filter was not added: PHP

[chimaster]

Hi,

I've read several posts in regards to this, but still seem to be having issues. I transferred a Mambo site to ispconfig and it worked beautifully, some simple configuration.php changes and it was away.

Now that I want to update and move the live site I seem to be getting this error. I see some posts regarding this not being a real issue just filling the error.log file. It seems to be an issue for me (perhaps??)

I can view my newly uploaded Mambo site, but am unable to login at all, either as a user or admin, where as when I tested it it worked fine.

Does anyone have some suggestions on how to resolve this issue and hopefully narrow down my problems.

Thanks lots.