The technical team have informed us that the Envolve alternative offered by the new company did not work out. They are currently testing out another solution. As this may take a while, I've re-enabled one of our previous chat options (The Cyb Chatbox) so that you will be able to continue chatting here. You can find the chat on the main page below the forums. You can also open this chat in a new tab by clicking on the "TTL Chat" link in the navbar, or "TTL Chat" and "Chatbox full" in the drop down menu of the chat box.
I will get back to you when I have new information from the technical team. If you want to suggest a free chat solution to us you think could work with vBulletin 3.8.4, please do so by posting in the Suggestions forum.
Thank you for your patience.