Error in JavaScript

[mantux5]

Poker Mavens version: 5.10 (64-bit if that does make any difference in the website)
Some users receive this error:

[mantux5]

Open up a full image to see line numbers

[Kent Briggs]

Typically that's caused by overzealous security software on that computer, blocking the browser from making that websocket connection. Nothing after that "was interrupted" line matters.