"Error note" records an egg-sore MySQL Build table error-1064

--Application Information SheetDROP TABLE IF EXISTS' Ks_apps_info ';CREATE TABLE' ks_apps_info ' (' AppID ' )int( One) not NULLCOMMENT'app ID, generated by the Business Gateway', ' appname 'varchar(255) not NULL DEFAULT 'default App'COMMENT'App Name', ' Access_token 'varchar(255) not NULL DEFAULT "'COMMENT'Access Authorization Code', ' Instance_count 'int( One) not NULL DEFAULT 0COMMENT'Number of instances', ' Create_time 'datetime  not NULL DEFAULT '0000-00-00 00:00:00'COMMENT'Create record time', ' Update_time 'timestamp  not NULL DEFAULT Current_timestamp  on UPDATE Current_timestampCOMMENT'Update time stamp',  PRIMARY KEY(' AppID '),UNIQUE KEY' Idx_accesstoken ' (' Access_token ') USING HASH,) ENGINE=InnoDBDEFAULTCHARSET=UTF8;

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"Error note" records an egg-sore MySQL Build table error-1064