problem with zoom image

hello.
i am problem with zoom image.Interference with menu:
http://wp.vione.ir/%d8%af%d9%87%d8%a7%d9%86-%d8%b4%d9%88%db%8c%d9%87-%d8%ac%d9%86%d8%b1%d8%a7%d9%84/

https://wordpress.org/plugins/image-zoom/