Memory could not be read?

When I save and log out at this one site and this one site only I get this error message:

The instruction at "0x1001cd11" referenced memory at 0x1001cd11
The memory could not be read.

I have contacted their tech support, but they are casual - to put it nicely -about answering back. So I posted here in the hope that someone here would have encountered this error message before and know what to do.

Someone goofed while writing the log out code, thusly it is trying to read/write to were it is not suppost to be.

You say write back and let you know if it worked. Do you mean if I hear back from their tech and it's fixed? Or was there something I can do?

What site is it?