Featured image size and text in posts main page

– create a child theme.
– create an empty functions.php file and place it in your child theme
– in that file, copy the contents from here: https://pastebin.com/MkF4kpHt
– change the values indicated there: 400 is the height of the home page images and 55 is the default excerpt value.
– upload the child theme to your server and activate it
– run a thumbnail regeneration plugin, like this one.

I think I made a huge mistake by adding it in the theme.

I receive this message:
Parse error: syntax error, unexpected end of file in /home/seminaires.01063/public_html/wp-content/themes/solon/functions.php on line 241

What can I do to make my Solon template working again?

Here is the code that I guess is at line 241:

function solon_html5shiv() {
echo ‘<!–[if lt IE 9]>’ . “\n”;
echo ‘<script src=”‘ . esc_url( get_template_directory_uri() . ‘/js/html5shiv.js’ ) . ‘”></script>’ . “\n”;
echo ‘<![endif]–>’ . “\n”;
}
add_action( ‘wp_head’, ‘solon_html5shiv’ );
/**
* Custom template tags for this theme.
*/
require get_template_directory() . ‘/inc/template-tags.php’;

/**
* Custom functions that act independently of the theme templates.
*/
require get_template_directory() . ‘/inc/extras.php’;

/**
* Customizer additions.
*/
require get_template_directory() . ‘/inc/customizer.php’;

/**
* Load Jetpack compatibility file.

My website:

That code was not meant for the main theme. I’m guessing you can no longer delete the code you’ve added.

Do you have acces to your cPanel? You should acces it and delete the whole Solon folder and WordPress will revert back to Twenty Fourteen. After that you can simply install Solon again.

Perfect.
I’m back online and will follow your steps from the CPanel.

It worked.
Thanks for your help.