Basically, dont call us, we will call you.

I have checked the 'Contact Support' link and it is working, your problem might have been caused by the recent work done on the website servers.

if you are getting this error after you click submit on a ticket then please sure your subject line is below 30 characters.

Regards,
vk.

there is a pinned thread called error submitting ticket in this section that would cover your issue, to save you looking it up heres a link:

http://navyfield.com/Community/Forum/View.aspx?num=3163&searchtype=0&pagecount=0&searchvalue=&sort=5&category=E01&page1=1

also a forum search would have found other threads pointing you in that direction.

you also can get the error if your trying to attach some large files or non supported extentions.