An Issue with KZ Demo 1.8 made by Kr1Zo

I tried to install some addons on my listen server, but I got the message -- kz_demo.sma(55) : error 001: expected token: ";", but found "new" . I looked it up in the original post and it told me to add #pragma semicolon 1 in kz_demo.sma. When I opened the sma file, the line (#pragma semicolon 1) was already there....
Any solution to it?