[Calisthenics]

You do not need sscanf for a text only parameter.

pawn Code:

if (isnull(params)) return Usage(playerid,"w <matn> - Baray Chat Dargooshi");

Client message can be up to 144 characters + \0

If params is empty, \1 is passed in CallLocalFunction to avoid server crash. Is the include modified? Try re-download it.