DB error after install

Hello,
After installing the plugin, I click activate and I get an error creating a table in the database:

Can’t create table ‘dbb.cerber_lab’ (errno: -1)

CREATE TABLE IF NOT EXISTS cerber_lab ( ip varchar(39) CHARACTER SET ascii NOT NULL, reason_id int(11) unsigned NOT NULL DEFAULT ‘0’, stamp bigint(20) unsigned NOT NULL, details text NOT NULL ) DEFAULT CHARSET=utf8;