Error when i try to log in as user via admin

Hi,

I'm trying to log into the user's account from the admin. But when i click on the icon it redirects me to a page and i get an error.

I looked at the log file found this:
Table 'mytable.am_resource_access_sort' doesn't exist at /var/home/webservice/siteportfoliomanager.com/www/members/library/Am/Query.php line 41(1146) in query: SELECT SQL_CALC_FOUND_ROWS DISTINCT r.resource_id AS `resource_id`,resource_type AS `resource_type` FROM am_resource_access r LEFT JOIN am_access_cache c ON (c.user_id=15) AND (((c.fn = r.fn) AND (c.id = r.id)) OR (r.fn='product_category_id' AND r.id=-1)) AND ( (c.status='active' AND r.start_days IS NULL AND r.stop_days IS NULL) OR (c.status='active' AND c.days BETWEEN IFNULL(r.start_days,0) AND IFNULL(r.stop_days, 90000)) OR (c.days >= IFNULL(r.start_days,0) AND r.stop_days = -1) ) WHERE (r.fn IN ('free', 'free_without_login') OR c.user_id IS NOT NULL) AND resource_type IN ('folder', 'file', 'page', 'link', 'video') GROUP BY r.resource_access_id ORDER BY (SELECT ras.sort_order FROM am_resource_access_sort ras WHERE ras.resource_id=r.resource_id AND ras.resource_type=r.resource_type LIMIT 1), r.resource_id, r.resource_type

So I used the rebuild tables in the admin section.
Still no luck.

Help! Thanks