quadruples chat windows

I too am experiencing the same error, but in a more intense way. Currently, I have 4 Facebook Messenger windows open simultaneously, which is very inconvenient when entering my website http://www.fenixskin.net

I would like the message button to not expand on mobile devices and remain as a simple button until the customer touches the messenger button. Currently, it expands and covers the entire bottom of my website, which overlaps my shopping cart and prevents customers from clicking the “Buy Now” option.

The page I need help with: [log in to see the link]