Reversing scroll behaviour (already reversed RG)

Hi,

All elements with scrolling have a scrolling behaviour where moving up on my touchpad scrolls downwards.
For a chat widget in my app, I’ve used Zeroqode’s plugin to reverse the RG. Unfortunately, this has also reversed the scrolling behaviour for my touchpad, where now moving the scroll wheel upwards scrolls upwards as well.
I’m new to code dev and not overly familiar w/ HTML & CSS. Could someone help me with adding HTML to revert the scroll behaviour to what it was before?
For clarity, I want to return to moving scroll wheel up means RG scrolls down.