Parse error: syntax error, unexpected ‘;’

Hi, I’m getting a strange error with the plugin. I’m trying to to this:

[insert_php]$id = 1557; $p = get_page($id); echo apply_filters('the_content', $p->post_content);[/insert_php]

And I’m getting this error:

Parse error: syntax error, unexpected ‘;’ in /var/www/xn--fnpark-pua9l.dk/public_html/wp-content/plugins/insert-php/insert_php.php(48) : eval()’d code on line 2

Hope you can help me!

https://wordpress.org/plugins/insert-php/