for the date picker issue, edit the css/jquery-ui.css file, change:
.ui-helper-clearfix:after {content: "."; display: block; height: 0; clear: both; visibility: hidden;}
to:
.ui-helper-clearfix:after {content: ""; display: block; height: 0; clear: both; visibility: hidden;}
I dont see a map on the page you attached, please send a link where i can see the map problem.