[UFF]

You should use format for both the SendClientMessage like you did for SendClientMessageToAll!

Line 37:

Код:

new msg1[400];
format(msg1, sizeof(msg1), "{FF0000}You have killed {FFFF00}%s(%i){FF0000} with a Headshot!", playerName, playerid);
SendClientMessage(issuerid, COLOR_WHITE, msg1);

Line 40:

Код:

new msg2[400];
format(msg2, sizeof(msg2), "{FF0000}You have been killed in a Headshot by {FFFF00}%s(%i)!", otherName, issuerid);
SendClientMessage(playerid, COLOR_WHITE, msg2);