Java Script Error When Opening PM

[Wing]

I have a PM from a member yesterday. When I opened it I have a Java Script Error pop-up with the following details:

Description: Syntax error
Source: http://sydenham.org.uk/forum/ucp.php?i= ... =0&p=14391
Line:313

See more details ?

Similarly, when I replied to the PM I got the same pop-up. What could be the issue ?

[admin]

I am sending you a PM. Let me know here if you have a problem reading or replying.

Admin