Unwanted code appearing at the top of website

My website: https://hiveultimate.com/ has a grey box above the header with some code inside it that shouldn’t be displayed. From looking at the theme I cannot see what is bringing this code in, but it only appeared in the last month or so.

The code is:

‘use strict’;var avia_is_mobile=!1;if(/Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent)&&’ontouchstart’ in document.documentElement){avia_is_mobile=!0;document.documentElement.className+=’ avia_mobile ‘} else{document.documentElement.className+=’ avia_desktop ‘};document.documentElement.className+=’ js_active ‘;(function(){var e=[‘-webkit-‘,’-moz-‘,’-ms-‘,”],n=”,o=!1,a=!1;for(var t in e){if(e[t]+’transform’ in document.documentElement.style){o=!0;n=e[t]+’transform’};if(e[t]+’perspective’ in document.documentElement.style){a=!0}};if(o){document.documentElement.className+=’ avia_transform ‘};if(a){document.documentElement.className+=’ avia_transform3d ‘};if(typeof document.getElementsByClassName==’function’&&typeof document.documentElement.getBoundingClientRect==’function’&&avia_is_mobile==!1){if(n&&window.innerHeight>0){setTimeout(function(){var e=0,o={},a=0,t=document.getElementsByClassName(‘av-parallax’),i=window.pageYOffset||document.documentElement.scrollTop;for(e=0;e

Any ideas as to why this is happening or how to fix it? The theme version is 5.6.4 and the wordpress version is 6.2.2.
Thanks!