Private messages error

Hi All, I am wondering if the last few updates might have something to do with this problem I am having. Out of the blue I can't preview, reply, or send a private message on my site. The only thing I've changed in the last week or so is add in those security patches and updates to bring the site up to ver 303.

Anyway when I try and do a preview, reply or send of a private message I get this error from the web server. Could this be a server problem and not anything to do with Fusion?

Thanks
-Jim

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