Hi qouiou , could you add your Tawk widget code instead only the API toggle function:
<script type="text/javascript">
var Tawk_API=Tawk_API||{};
var Tawk_LoadStart=new Date();
(function(){
var s1=document.createElement("script"),s0=document.getElementsByTagName("script")[0];
s1.async=true;
s1.src='https://embed.tawk.to/5e4a5f7f298c395d1ce84d53/default';
s1.charset='UTF-8';
s1.setAttribute('crossorigin','*');
s0.parentNode.insertBefore(s1,s0);
})();
</script>