update error beta1 -> beta2

i get this errors when trying to update from b1 to b2:

running update.php:

user warning: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1 query: ALTER TABLE flag_friend_message CHANGE fcid `fcid` INT auto_increment DEFAULT NULL, ADD in /var/www/htdocs/includes/database.mysql-common.inc on line 520.

The following queries were executed
flag_friend module
Update #6000
ALTER TABLE {flag_friend_message} DROP PRIMARY KEY
ALTER TABLE {flag_friend_message} DROP fcid
Failed: ALTER TABLE {flag_friend_message} CHANGE fcid `fcid` INT auto_increment DEFAULT NULL, ADD

and when accessing the module:
user warning: Unknown column 'flag_content_users__flag_friend_message.fcid' in 'on clause' query: SELECT DISTINCT(users.uid) AS uid, users.picture AS users_picture, users.name AS users_name, flag_content_users__flag_friend_message.message AS flag_content_users__flag_friend_message_message, flag_content.content_id AS flag_content_content_id, flag_friend.uid AS flag_friend_uid FROM users users INNER JOIN flag_content flag_content_users ON users.uid = flag_content_users.uid AND flag_content_users.fid = 2 LEFT JOIN flag_friend_message flag_content_users__flag_friend_message ON flag_content_users.fcid = flag_content_users__flag_friend_message.fcid LEFT JOIN flag_content flag_content ON users.uid = flag_content.content_id AND (flag_content.fid = 2 AND flag_content.uid = 3) LEFT JOIN flag_friend flag_friend ON users.uid = flag_friend.uid WHERE flag_content_users.content_id = 3 LIMIT 0, 10 in /modules/views/includes/view.inc on line 731.