Shoe Dryer Error

[behixso_62]

https://www.ebay.com/itm/373460144023?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D2016... boot Shoe DryerI can’t open a case not sure what going on with this boot heater it showing EE and Everytime I hit the dry button it cuts off and still haven’t heard from seller I bought it from I use it 1 time then after use it today it not heating. Any advice  thanks