error 012: invalid function call, not a valid address

[ALFONSO.]

CMD:ans(playerid, params[])
{
    if(PlayerInfo[playerid][pAdmin] < 0) return true;
    if(sscanf(params, "is[36]", params[0], params[1])) return SCM(playerid, -1, "Äëÿ îòâåòà èñïîëüçóéòå /ans [id] [îòâåò]");
    
    new
        name[MAX_PLAYER_NAME + 1],
            string[200];
    new string2[200];
            
    format(string, sizeof(string), "Âàø îòâåò %s:{FFFFFF} %s", name(params[0]), params[1]);           //                  284
    SCM(playerid, COLOR_YELLOW, string);
    if(!IsPlayerConnected(params[0])) SCM(playerid, -1,"Íåâåðíûé  ID!" );
    format(string2, sizeof(string2), "{77BBFF}Àäìèíèñòðàòîð {FF7777}%s {77BBFF}îòâåòèë Âàì{FFFFFF}\n %s", (playerid)PlayerName, params[1]);
    SPD(params[0], DIALOG_ANSWE,DIALOG_STYLE_MSGBOX, "{8B4513}Îòâåò", string2, "Îê", "Çàêðûòü", params[0], COLOR_PURPLE, string2);
    return 1;
}

D:\User\Desktop\b-rp\gamemodes\b-rp.pwn(284) : error 012: invalid function call, not a valid address
D:\User\Desktop\b-rp\gamemodes\b-rp.pwn(284) : warning 215: expression has no effect
D:\User\Desktop\b-rp\gamemodes\b-rp.pwn(284) : error 001: expected token: ";", but found ")"
D:\User\Desktop\b-rp\gamemodes\b-rp.pwn(284) : error 029: invalid expression, assumed zero
D:\User\Desktop\b-rp\gamemodes\b-rp.pwn(284) : fatal error 107: too many error messages on one line

Compilation aborted.Pawn compiler 3.2.3664              Copyright (c) 1997-2006, ITB CompuPhase


4 Errors.