Fehler in Datenbankabfrage (get_data_array_by_query: 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 ') AND maschinen_angebote.id != ORDER BY FIELD(maschinen_angebote.kategorie_id, ' at line 1):
SELECT * FROM maschinen_angebote WHERE (1) AND maschinen_angebote.kategorie_id IN () AND maschinen_angebote.id != ORDER BY FIELD(maschinen_angebote.kategorie_id, ) LIMIT 0,3