• I activated the Tumblr Widget plugin on my WordPress site and received the following error on my screen:

    Notice: The called constructor method for WP_Widget in Tumblr_Widget is deprecated since version 4.3.0! Use
    __construct()
    instead. in /var/www/public/wp-includes/functions.php on line 3766

    I am using Custom Sidebars as well. Could this be a clash between them? The error also shows at the top of my Responsive Flickr Slideshow output.

    Any help is greatly appreciated!

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