Fatal Error Cloner during activation

This is the error i get trying to activate the cloner.

Fatal error: Call to undefined function is_subdomain_install() in /home/content/p3pnexwpnas10_data01/56/2641456/html/wp-content/plugins/cloner/integration/integration.php on line 93

I will turn on the support module and allow access for 4 days. I hope someone shall respond before this time.