yes there is a 500 error in the console
POST https://xxxx.com/wp-admin/admin-ajax.php?_fs_blog_admin=true 500
(anonymous) @ VM6424:1
send @ load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,jquery-ui-draggable,moxiejs,plupload,jquery-ui-&load[chunk_1]=resizable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog&ver=5.3:4
ajax @ load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,jquery-ui-draggable,moxiejs,plupload,jquery-ui-&load[chunk_1]=resizable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog&ver=5.3:4
(anonymous) @ shipping_row.js?ver=2.7.1:568
dispatch @ load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,jquery-ui-draggable,moxiejs,plupload,jquery-ui-&load[chunk_1]=resizable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog&ver=5.3:3
r.handle @ load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,jquery-ui-draggable,moxiejs,plupload,jquery-ui-&load[chunk_1]=resizable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog&ver=5.3:3
I am not a programmer… everything else works flawless