SYNTAX ERROR when net-work activating Ad share

Hey
I hope you having a good day.

Now I tried to activate ad sharing, but Syntax error happened.

Parse error: syntax error, unexpected 'new' (T_NEW) in /usr/home/ae121dam4t/html/wp-content/plugins/ad-sharing/ad-sharing.php on line 44

Could you help me?

KIng regrds

KAZUKI KIKUCHI