Your database is corrupt. At times like this, nothing beats a good backup.
In fact make a complete backup of your database now and put it away for safe
keeping.
Sometimes doing a Compact and Repair is the fix; however, it's not working
for you. You probably need to open a new database file and import everything
in the corrupt database into the new one.
BTW: I highly recommend disabling Compact on Close. Unless your database is
poorly designed, it shouldn't need compacting more than once a month or so.