Dropboximage_v_2_0_2. image not changing on selection

[NHL09]

Hello, can anyone help.
There is a plug-in dropboximage_v_2_0_2.
Installation and tuning is excellent.
But the image does not change, in the console ---
Uncaught ReferenceError: image_name is not defined
     At Object. <Anonymous> (standard-standart-detail: 254)
     At i (jquery.min.js: 2)
     At Object.fireWith [as resolveWith] (jquery.min.js: 2)
     At y (jquery.min.js: 4)
     At XMLHttpRequest.c (jquery.min.js: 4) ----
Site http://new.oboi161.ru/index.php/ru/shop/%D1%88%D0%B5%D0%BB%D0%BA%D0%BE%D0%B2%D0%B0%D1%8F-%D0%B4%D0%B5%D0%BA%D0%BE%D1%80%D0%B0%D1%82%D0%B8%D0%B2%D0%BD%D0%B0%D1%8F-%D1%88%D1%82%D1%83%D0%BA%D0%B0%D1%82%D1%83%D1%80%D0%BA%D0%B0-%D0%B6%D0%B8%D0%B4%D0%BA%D0%B8%D0%B5-%D0%BE%D0%B1%D0%BE%D0%B8/%D1%81%D1%82%D0%B0%D0%BD%D0%B4%D0%B0%D1%80%D1%82-standart-detail?dwip[1080]=%2013&

File https://yadi.sk/d/pxCq_vQ93FenG6