Thanks for this @seb86. Spotted some undefined index errors:
Notice: Undefined index: title in /wp-content/plugins/affiliatewp-affiliate-banners-widget/includes/widget.php on line 196
Notice: Undefined index: affiliate_url in /wp-content/plugins/affiliatewp-affiliate-banners-widget/includes/widget.php on line 197
Notice: Undefined index: affiliate_url in m/wp-content/plugins/affiliatewp-affiliate-banners-widget/includes/widget.php on line 197
Notice: Undefined index: size in wp-content/plugins/affiliatewp-affiliate-banners-widget/includes/widget.php on line 199
Notice: Undefined index: std in /wp-content/plugins/affiliatewp-affiliate-banners-widget/includes/widget.php on line 206
Thanks for this @seb86. Spotted some undefined index errors: