ERROR MYSQL CREATE TABLE

[franncysdias francys]

CREATE TABLE `grupobitkey_bd`.`tb_os` (
`idos` INT GENERATED ALWAYS AS () VIRTUAL,
`nome` VARCHAR(100) NULL,
`uc` VARCHAR(12) NULL,
`situacaoUC` VARCHAR(4) NULL,
`os` INT NULL,
`situacaoOS` VARCHAR(4) NULL,
`servico` INT(3) NULL,
`dataFase` DATE NULL,
`dataAbertura` DATE NULL,
`dataMaxima` DATE NULL,
`tipoLogradouro` CHAR(2) NULL,
`logradouro` VARCHAR(50) NULL,
`numero` INT NULL,
`complemento` VARCHAR(45) NULL,
`bairro` VARCHAR(45) NULL,
`distrito` VARCHAR(45) NULL,
`municipio` VARCHAR(45) NULL,
`status` SMALLINT NULL,
`dtCadastro` TIMESTAMP NULL,
PRIMARY KEY (`idos`),
UNIQUE INDEX `idos_UNIQUE` (`idos` ASC) VISIBLE)
ENGINE = MyISAM
DEFAULT CHARACTER SET = latin1;

Qual o erro nesse comando pessoal :(