Table with code above page or posts

Hi!

I’m new to blogging, wordpress and have started directly with LocalByFlywheel as it was promoted as super friendly and easy to use even for dummies and beginners!

I’ve managed to install LocalBF quite easily on Firefox. I’ve installed a premium theme and have created simple posts, pages, inserting images, creating menus, and other simple manipulations.

However, when I want to view the site and click on “Visit site”, I have a table showing up before the actual content of the post or page.

The table starts as follows (see attachment):

Warning: count(): Parameter must be an array or an object that implements Countable in /app/public/wp-includes/post-template.php on line 284

Call Stack

5 columns from left to right, with the following labels. # | Time | Memory | Function | Location

What could be done to remove the table?

Thank you very much for your help and assistance,

Marie

Warning Count Message_20180217

That’s an error from PHP 7.2. Moving down to 7.1 will make it go away. If this is in WP core it should be fixed soon.