Executa esse comando na data base:

ALTER TABLE `players` ADD `cast` TINYINT NOT NULL DEFAULT '0'

Ainda da o mesmo erro amigo

Exatamente o mesmo?
Então deleta sua table players e executa esse comando na data base:

CREATE TABLE players (
    id                    INTEGER           PRIMARY KEY
                                            NOT NULL,
    name                  VARCHAR( 255 )    NOT NULL,
    world_id              INTEGER           NOT NULL
                                            DEFAULT '0',
    group_id              INTEGER           NOT NULL,
    account_id            INTEGER           NOT NULL,
    level                 INTEGER           NOT NULL
                                            DEFAULT '1',
    vocation              INTEGER           NOT NULL
                                            DEFAULT '0',
    health                INTEGER           NOT NULL
                                            DEFAULT '100',
    healthmax             INTEGER           NOT NULL
                                            DEFAULT '100',
    experience            INTEGER           NOT NULL
                                            DEFAULT '0',
    lookbody              INTEGER           NOT NULL
                                            DEFAULT '10',
    castViewers           INTEGER           NOT NULL
                                            DEFAULT '11',
    castDescription       VARCHAR( 255 )    NOT NULL
                                            DEFAULT '''',
    cast                  TINYINT           NOT NULL
                                            DEFAULT '0',
    lookfeet              INTEGER           NOT NULL
                                            DEFAULT '10',
    lookhead              INTEGER           NOT NULL
                                            DEFAULT '10',
    looklegs              INTEGER           NOT NULL
                                            DEFAULT '10',
    looktype              INTEGER           NOT NULL
                                            DEFAULT '136',
    lookaddons            INTEGER           NOT NULL
                                            DEFAULT '0',
    lookmount             INTEGER           NOT NULL
                                            DEFAULT '0',
    maglevel              INTEGER           NOT NULL
                                            DEFAULT '0',
    mana                  INTEGER           NOT NULL
                                            DEFAULT '100',
    manamax               INTEGER           NOT NULL
                                            DEFAULT '100',
    manaspent             INTEGER           NOT NULL
                                            DEFAULT '0',
    soul                  INTEGER           NOT NULL
                                            DEFAULT '0',
    town_id               INTEGER           NOT NULL,
    posx                  INTEGER           NOT NULL
                                            DEFAULT '0',
    posy                  INTEGER           NOT NULL
                                            DEFAULT '0',
    posz                  INTEGER           NOT NULL
                                            DEFAULT '0',
    conditions            BLOB              NOT NULL,
    cap                   INTEGER           NOT NULL
                                            DEFAULT '0',
    sex                   INTEGER           NOT NULL
                                            DEFAULT '0',
    lastlogin             INTEGER           NOT NULL
                                            DEFAULT '0',
    lastip                INTEGER           NOT NULL
                                            DEFAULT '0',
    save                  BOOLEAN           NOT NULL
                                            DEFAULT '1',
    skull                 INTEGER           NOT NULL
                                            DEFAULT '0',
    skulltime             INTEGER           NOT NULL
                                            DEFAULT '0',
    rank_id               INTEGER           NOT NULL,
    guildnick             VARCHAR( 255 )    NOT NULL
                                            DEFAULT '''',
    lastlogout            INTEGER           NOT NULL
                                            DEFAULT '0',
    blessings             INTEGER           NOT NULL
                                            DEFAULT '0',
    pvp_blessing          BOOLEAN           NOT NULL
                                            DEFAULT '0',
    balance               INTEGER           NOT NULL
                                            DEFAULT '0',
    stamina               INTEGER           NOT NULL
                                            DEFAULT '151200000',
    direction             INTEGER           NOT NULL
                                            DEFAULT '2',
    loss_experience       INTEGER           NOT NULL
                                            DEFAULT '100',
    loss_mana             INTEGER           NOT NULL
                                            DEFAULT '100',
    loss_skills           INTEGER           NOT NULL
                                            DEFAULT '100',
    loss_containers       INTEGER           NOT NULL
                                            DEFAULT '100',
    loss_items            INTEGER           NOT NULL
                                            DEFAULT '100',
    premend               INTEGER           NOT NULL
                                            DEFAULT '0',
    online                INTEGER           NOT NULL
                                            DEFAULT '0',
    marriage              INTEGER           NOT NULL
                                            DEFAULT '0',
    promotion             INTEGER           NOT NULL
                                            DEFAULT '0',
    deleted               INTEGER           NOT NULL
                                            DEFAULT '0',
    description           VARCHAR( 255 )    NOT NULL
                                            DEFAULT '''',
    offlinetraining_time  SMALLINT UNSIGNED NOT NULL
                                            DEFAULT '43200',
    offlinetraining_skill INT               NOT NULL
                                            DEFAULT '-1',
    ip                    VARCHAR( 17 )     NOT NULL
                                            DEFAULT '0',
    UNIQUE ( name, deleted ),
    FOREIGN KEY ( account_id ) REFERENCES accounts ( id )
);

Editado Dezembro 20, 2014 10 anos por danihcv (veja o histórico de edições)

Vou deletar e da esse erro, o que eu faço?

 

A table "cast" ja existe na sua table.

Tenta executar esse comando

ALTER TABLE  `players` ADD   `castViewers` INT( 11 ) NOT NULL DEFAULT  '0',
ADD  `castDescription` VARCHAR( 255 ) NOT NULL

Se ainda ñ der certo.
Pra deletar sua table "players" execute esse comando:

DROP TABLE IF EXISTS `players`;

E aí vc executa o comando grandão que eu passei aí em cima.