Issue Calendar Dates Off

There is a CSS style:

input[type="date"], input[type="email"], input[type="number"], input[type="password"], input[type="search"], input[type="tel"], input[type="text"], input[type="url"], select, textarea {
    padding: 10px;
    ...
}

In https://sandypawsretreats.com/wp-content/themes/betheme/css/shortcodes.css?ver=15.9

That’s overwriting the dropdown of the plugin.

You can add this to your CSS to prevent this:

div.wpbs-calendar div.wpbs-heading select {
    padding: 0px;
}