Warning message WP 5.5.0

Replies: 0

HI I have got this warning message, when I disble the plugin the Add slider button is gone and also the warning message is gone.

Is there a fix?

Message:
Deprecated: media_buttons_context is verouderd sinds versie 3.5.0. Gebruik in plaats daarvan media_buttons. in /home/pahedomotica/test.pahedomotica.nl/wp-includes/functions.php on line 5148

Thanks.