[Marttt]

I think that Dragokas don't support local servers, but you can change the code in this parts:

for (int i = IsDedicatedServer() ? 1 : 0

to

for (int i = 1

and try...this may stop the exception, but the plugin may not work properly.

The reason besides (from my tests) it is that when you use console commands in a local server (or binded sm_commands, being the hoster), it always runs as client index = 0, which is invalid, but if you are using commands through the chat it should work in most of the cases.