Cloner not working properly.

I am using your multisite cloner plugin. the plugin is working fine without setting. but when I have enabled setting part then plugin not working. I am getting 500 error in the console. Please help.

https://cdn.livechat-static.com/api/file/v2/lc/att-old/8801096/ae7787e16b70873f156f921b403bf2ec/image%20(2).png