Content overflow scroll, not scrolling


I’m having a problem trying to make a sertain content div in my site scrollable, i have already achieved this content-interaction div, but for some reason the content div it is not working. I set a height and the content is overflowing, i set my overflow to scroll but it is not working. I hope someone can take a look at it and help me out.

(My site is a chat, the contacts are scrolling but the chat isn’t)

Thanks in advance.

Here is my site Read-Only:

[1]: [http:/](]

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