[Konstantinos]

Server crash? Load crashdetect plugin.

By the way, since reason's size is 64, the size after the specifier must also be 64 and not 125:

pawn Код:

new id,reason[64];
if(sscanf(params,"rs[64]",id,reason)) return SendClientMessage(playerid,COLOR_RED,"USAGE: /warn [playerid] [reason]");