Error in plugin.php

I’m getting an error in multiple sections in the ACP.

It says:

Warning: invalid argument supplied for foreach() in mywebsitepath/wp-admin/includes/plugin.php on line 1290 …

The error is produced when I try to edit an image as well as when I remove an featured image.

On line 1290 the following is stated:

foreach ( $menu as $i => $item ) {

I have tried solving it by reuploading the plugin.php file, but this didn’t work.

I hope someone has got the solution for me, thanks !!

– Robbert