Mobile version displaying errors

Hello,

I love your plugin but on some mobile devices I see the following error before the widget:

Warning: extract() expects parameter 1 to be array, null given in ..\wp-content\plugins\woo-widget-product-slideshow\classes\class-slider-mobile-display.php on line 30
(and on line 31).
Stable ver: 1.1.1

Any idea?

Thanks

https://ww.wp.xz.cn/plugins/woo-widget-product-slideshow/