having else trouble

list admins = [""];
integer active;
integer admin;
integer brodcast = -5657;
integer dischan = -7493;
detectsim()
{
    string region = llGetRegionName();
    if(region == "Lestern")
    {
        llOwnerSay("Radio Active");
        active = TRUE;
    }
    else
    {
        llOwnerSay("Radio Deativated - Only useable in Lestern Sim");
        active = FALSE;
    }
}
default
{
    state_entry()
    {
        llSetText("",<1,1,1>,1);
        llListen(1,"",llGetOwner(),"");
        llListen(2,"",llGetOwner(),"");
        llListen(0,"",llGetOwner(),"");
        detectsim();
    }
    listen( integer channel, string name, key id, string message )
    {
        if(active == TRUE)
        {
            if(channel == 1)
            {
                if(admin == TRUE)
                {
                    llRegionSay(brodcast,"[GM] "+(string)llGetOwner()+" (PD): "+message);
                }
                if(admin == FALSE)
                {
                    llRegionSay(brodcast,(string)llGetOwner()+" (PD): "+message);
                }
            }
            else if(channel == 2)
            {
                if(admin == TRUE)
                {
                    llRegionSay(brodcast,"[GM] "+(string)llGetOwner()+" (PD)->(Dispatch): "+message);
                }
                if(admin == FALSE)
                {
                    llRegionSay(brodcast,(string)llGetOwner()+" (PD)->(Dispatch): "+message);
                }
            }
            else if(channel == 0)
            {
                if(message == "aon")
                {
                    if(~llListFindList(admins, (list)llGetOwner()));
                    {
                        admin = TRUE;
                        llWhisper(0,"[GM] Tag Enabled");
                    }
                    else // error
                    {
                        llOwnerSay("Admin only Command");
                    }
                }
                if(message == "aoff")
                {
                    admin = FALSE;
                    llWhisper(0,"[GM] Tag Disabled");
                }
                else // error
                {
                    llOwnerSay("Admin only Command");
                }
            }
        }
        else
        {
            llOwnerSay("Radio is inactive you may only listen");
        }
    }
}