Geen probleem

- assuming you have access to PHPmyAdmin:
1) Fire up PHPmyAdmin, select your DB
2) Click on SQL tab on the top, right
3) In the box "Draai SQL query/queries op database xxx", type (or cut/paste):
ALTER TABLE `mos_glossary` ADD `checked_out_time` DATETIME DEFAULT '0000-00-00 00:00:00' NOT NULL ;
4) Click on Start
5) You will get a message that the field was added (or similar)
6) Et voila, errors are gone
7) Let me know if this works for you...
Regards/Mvg
Anthony Aykut