Function add_menu_page was called incorrectly.

Having WordPress 6.0
All plugins up-to-date, cache and cookies cleared, problem still persists.

The whole error is:

Notice: Function add_menu_page was called incorrectly. The seventh parameter passed to add_menu_page() should be numeric representing menu position. Please see Debugging in WordPress for more information. (This message was added in version 6.0.0.) in /home/customer/www/actgreener.co/public_html/wp-includes/functions.php on line 5831

Warning: Cannot modify header information – headers already sent by (output started at /home/customer/www/actgreener.co/public_html/wp-includes/functions.php:5831) in /home/customer/www/actgreener.co/public_html/wp-admin/includes/misc.php on line 1380

The website seems to be working ok on the front side. However, at the back I get this Notice with Warning and I’m unable to use Elementor properly (there is no save button to save the changes, but a button to get the pro version).

Screenshots showing misc.php line 1380 and funcions.php line 5831:
https://www.dropbox.com/s/70k8iwlvcbqfkun/functions_php_screenshot.png?dl=0
https://www.dropbox.com/s/f754j9pwbroav3g/misc_php_screenshot.png?dl=0

I’ve been told that “functions.php is code that has been added by the theme”. I searched for add_menu_page() in functions.php but didn’t find it there.

Thank you!

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