[KamiN]

L 06/18/2011 - 14:401: [AMXX] Displaying debug trace (plugin "xredirect.amxx") L 06/18/2011 - 14:401: [AMXX] Run time error 4: index out of bounds L 06/18/2011 - 14:401: [AMXX] [0] xredirect.sma::welcome_message (line 2424)

public welcome_message(id[])
{
    new nID = id[0]
    if (is_user_connected(nID)) // make sure the player didn't already disconnect within the set_task delay
    {
        new nLastServer = g_nLastServer[nID - 1]
        if ((nLastServer >= 0) && (nLastServer != g_nOwnServer) && (nLastServer < MAX_SERVERFORWARDS))
        {
            new sAnnounceText[MAX_WELCOME_LEN]
            format(sAnnounceText, MAX_WELCOME_LEN - 1, "%L", nID,  "MSG_REDIRFROM", g_saServerNames[g_nOwnServer],  g_saServerNames[nLastServer])
            if ((get_pcvar_num(cvar_retry) == 1) && (get_pcvar_num(cvar_show) == 1))
                format(sAnnounceText, MAX_WELCOME_LEN - 1, "%s^n%L", sAnnounceText, nID, "MSG_RETRY_BACK_ANNOUNCE")
            
            set_hudmessage(000, 100, 255, -1.0, -1.0, 0, 0.0, 10.0, 0.5, 2.0, 1)
            show_hudmessage(nID, sAnnounceText)
        }
    }
}

[bibu]

If it is really a problem with the plugin, you should still read this sticky:

http://forums.alliedmods.net/showthread.php?t=133929