Richard Aber

It appears that the YouTube video’s id was omitted.

When I view the page’s HTML source code I see:
src="https://www.youtube.com/embed/?rel=0&wmode=transparent"

There is no indication of the video’s id in that src URL. It should look something like:
src="https://www.youtube.com/embed/kEVQhNGRl94?rel=0&wmode=transparent"

What’s the YouTube URL of the video you intended to embed?
In a standard WordPress installation, you should be able to paste the URL from the YouTube video on a line all by itself and have it embed properly.

Refer to: https://codex.www.ads-software.com/Embeds

Try increasing the max_execution_time parameter in XAMPP’s php.ini, then restart the XAMPP server.

It appears that the plugin author(s) left a debug echo in the ss-keyword-trace.php file, line 98.

echo "SELECT repeat_count FROM " . SS_TABLE . " WHERE keywords ='" . mysql_escape_string($keyword)."'";

And I was just planning to use it for a project… ??