Check out your website source code. You have customized the template code in a wrong way, like there not found body beginning tag. Checkout the screenshot as reference http://prntscr.com/ify4ym That’s why, the slider and others not working.
In this issue, customize the template code in the proper way or hire someone else to customize the template for you based on your needs/requirements.
If you want to show online, then you have to online on tawk.to
Moreover, please follow the steps below to remove the Tawk.to live chat from both html & whmcs template.
– Open main.js file. (For both html & whmcs templatejs/main.js)
– Then search for the comment Live Chat Widget
– comment or remove the code (check out the screenshot as reference http://prntscr.com/do2adj )