Error get_image_sizes()

Hi,

We updated the wp and woocommerce to the last version, and after that the pugin doesn′t work. We had to disabled it to can upload pics, else we get a error when upload new pics.
Error:

An error of type E_ERROR was caused in line 126 of the file <pathremoved>/wp-content/plugins/smart-image-resize/admin/class-plugpix-smart-image-resize-admin.php. Error message: Uncaught Error: Call to undefined method Plugpix_Smart_Image_Resize_Helper::get_image_sizes() in <pathremoved>/wp-content/plugins/smart-image-resize/admin/class-plugpix-smart-image-resize-admin.php:126

Thanks for your help.