help with a console error

im getting an errror in my project. it could be a new package ive gotten from the asset store however ive gotten quite a few here is on example

Assets/XsollaUnitySDK/Plugins/SimpleJSON.cs(905,20): the namespace ’ SimpleJSON’ already contains a defenition for ’ JSONlazycreator’

they are all somewhat the same but the namespaces change

does the script match up with the class name ? do you dublicate something so you got two times the same class ? loos it up in the scripts