[Mauzen]

Are the error lines the SendCcientMessage stuff? I guess so, you are missing the color parameter there.

change
SendClientMessage(killerid, "a message...");
to
SendClientMessage(killerid, 0xFF3333FF, "a message...");

in both cases

0xFF3333FF is a color code, change it to whatever color you would like, this is red now. There are infos about this in the wiki and the forum.