Hello ANTWON

If you wish to hide the event capacity from front-end, you can use this CSS:

div.am-event-data > div.am-event-info > div:nth-child(2) > div {
display: none !important;
}

You need to add it on the page where you added the [Amelia events] shortcode, in "custom CSS" or "Custom code" section of your page builder.

If you're not using a page builder, please take a look at this thread and you'll see how you can add custom code to a single page.