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 'ORDER BY start ASC' at line 1
SELECT id, ort, zeit, info_text, gruppe, UNIX_TIMESTAMP(start) AS start, UNIX_TIMESTAMP(end) AS end, uid, last_modified FROM kalender WHERE (gruppe='ubei' OR gruppe='juubei' OR gruppe='lentin' OR gruppe='adelsc' OR gruppe='altman' OR gruppe='beilng' OR gruppe='boehmf' OR gruppe='buxhei' OR gruppe='denken' OR gruppe='dollns' OR gruppe='eichst' OR gruppe='eitens' OR gruppe='gaimer' OR gruppe='grossm' OR gruppe='hepber' OR gruppe='hitzho' OR gruppe='kipfen' OR gruppe='koesch' OR gruppe='moerns' OR gruppe='pfoerr' OR gruppe='stammh' OR gruppe='waltin' OR gruppe='wellhe' OR gruppe='wettst' OR gruppe='john') AND (start >= '2008-11-21 23:00:00' OR end >= '2008-11-21 23:00:00') AND krepeat!=2 AND art < 4 AND ( id!='3484' AND id!='15638' AND id!='15631' AND id!='15642' AND id!='15629' AND id!='15639') LIMIT 10 ORDER BY start ASC

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 'ORDER BY start ASC' at line 1