[Meller]

Please don't go all caps and please, start using the [PHP] or at least [CODE] tag for PAWN codes in the forums..
However, here's a fixed code:

PHP код:

CMD:ranks(playerid) {
    new string[156], dialogstr[sizeof(string) * sizeof(gRank)];
    strcat(dialogstr, "Rank\tRank name\tScore\n");
    for(new i; i < sizeof(gRank); i++) {
        if(GetPlayerRank(playerid) >= i)
                format(string, sizeof(string), ""SAMP_BLUE"%i.\t"SAMP_BLUE"%s\t"SAMP_BLUE"%i+ score\n", i, gRank[i][r_name], gRank[i][r_score]);
        else
            format(string, sizeof(string), ""GREY"%i.\t"GREY"%s\t"GREY"%i+ score\n", i, gRank[i][r_name], gRank[i][r_score]);
    }
    strcat(dialogstr, string);
    ShowPlayerDialog(playerid, DIALOG_COMMON, DIALOG_STYLE_TABLIST_HEADERS, "Ranks list", dialogstr, "Close", "");
    return 1;
} 


You should've received lots of errors over missing the closing bracket of the for() loop; at line 9.

Mhm-.