how to remove text from excerpt: Watch this video on YouTube

This is the output in html
https://ibb.co/NKxdz55

That looks like an unfortunate conflict in how the excerpt is returned somehow, you should be able to fix this with a couple of lines of code using the wp_trim_excerpt filter (assuming your site/ plugins is/ are using the WordPress core excerpt logic), doing a str_replace( 'Watch this video on YouTube', '', $excerpt ); in it likely.

hope this helps,
frank

Thank you for the quick response, very much appreciated!

Unfortunately I am not a programmer and I don’t know how to write code.

Since it sounds simple, any chance you could write these lines of code for me? (and for any others in this situation…) I would be able to paste it into my functions.php

Or maybe just update the plugin?

It would be great if your plugin would be compatible with Elementor (applying this fix), since Elementor is so popular. Also, the “Premium Addons for Elementor” plugin, despite its name, it’s also a free plugin.
And the element I used to generate the post grid is the element “Premium Blog”, if you feel like trying it out.

Using Astra, as a theme.

Try this (untested) code snippet, maybe it works ??

add_filter( 'wp_trim_excerpt', function( $excerpt ) {
    return str_replace( 'Watch this video on YouTube', '', $excerpt );
} );